Plugable’s New Bluetooth 4.0 (Low Energy) Adapter

Bluetooth is booming. It’s the method of choice for connecting wireless devices — it has become nearly ubiquitous across the full range of today’s PCs, phones, tablets, etc.

So we’re excited to offering our new Plugable adapter to add the latest Bluetooth 4.0 wireless capabilities to your Windows or Linux PC. Our main focus for this product is on compatibility.

The same adapter supports both the new generation of Bluetooth 4.0 Low Energy devices and your existing Bluetooth 1.x, 2.x, and 3.x devices. For maximum compatibility on Windows, it supports both the built-in Windows Bluetooth stack (in Windows 7 and Windows 8 with the Broadcom low-level HCI driver automatically provided by Windows Update), but also includes a license to the best 3rd party Bluetooth stack on the market from Broadcom for even wider Bluetooth profile support, and operating system support back to Windows XP. The adapter uses Broadcom’s market-leading low-power, high-capability BCM20702 chipset.

You can connect wireless keyboards, mice, phone headsets, stereo headsets and speakers. Or connect any of the coming generation of Bluetooth Low Energy sensors and devices. With Bluetooth, its all standards based so the devices can outlive any particular device and be shared between your PC and post-PC era tablets and phones. This adapter provides the best hardware and software options so your PC can connect with the widest range of devices possible. And it enables a lot of other cool features of Bluetooth that are often overlooked.

Look for coming posts in our Bluetooth category for more info and new ideas on making the most of Bluetooth.

The adapter itself is tiny. So you can safely leave it connected and not worry about it getting bent or broke when you throw your laptop in a bag.

So why this adapter over others?

  • The Broadcom BCM20702 chipset and associated software stack are the best on the market today. Other adapters may come with one of the lesser Bluetooth stacks that have poor profile support or driver quality issues.
  • That said, I like that this hardware is compatible with the built-in Microsoft stacks in Windows 7 and Windows 8. I’m partial to the Microsoft stack, since working on it (at least, the RFCOMM component of it) a decade ago. If you plug it in to a Windows Update enabled system, the correct low-level driver for the Broadcom chip will be automatically downloaded, but the rest of the Bluetooth stack will be purely what’s built into Windows. This has pros and cons. The Microsoft built-in Bluetooth stack is high quality but supports fewer profiles. But now with the addition of stereo audio (A2DP) and Low Energy support in Windows 8, the built-in stack is great for most needs.
  • We offer this advantage of using either the Broadcom or the Microsoft stacks with this adapter. Our recommendation is to use what you automatically get from Windows 8 by plugging the adapter in. But for Windows 7 through XP, we recommend installing the Broadcom (WIDCOMM) stack from our driver download area or the CD.
  • In particular, Bluetooth Stereo Headsets and speakers are a common problem with other adapters. With ours, they’re supported on all versions of Windows with the Broadcom stack, and Windows 8 with the Microsoft stack. If you’ve had other Bluetooth adapters over the years, you know how frustrating it can be when trying to get headsets working. We’ve aimed to make it easier.
  • Support for Linux kernels 3.0.34 and later (basically, kernels after June 2012 or so) have support for this adapter built in. The adapter’s USB VID is 0x0a5c (Broadcom) and VID 0x21e8. See the checkins for adding support for this adapter to Linux here for leading kernels (in March 2012), here for kernel 3.2.20 (June 2012), and here for kernel 3.0.34 (June 2012)

Let us know if you have any questions at all. Bluetooth enables a lot of exciting uses – but there’s also a lot to think about in terms of compatibility. Our mission is to get best possible information out to everyone. Thanks for your support!

Where to Buy


88 comments on “Plugable’s New Bluetooth 4.0 (Low Energy) Adapter”

  1. chris Reply

    Hi. Your Bluetooth 4.0 adapter is no longer available on When will the 4.0 Bluetooth that fits USB 3.0 be available? Thanks from KS

    • Bernie Thompson Reply

      Hi Chris – Thanks for asking! Yes, sales got ahead of us and we sold out this week. More units are in transit and are scheduled to reach Amazon on Tuesday or Wednesday. On USB 3.0 – because Bluetooth doesn’t stress USB 2.0 at all, all Bluetooth adapters will stay USB 2.0. But of course, that also means they’ll work in USB 3.0 ports – so no problem if that’s all you have. Thanks for asking, and for going out of your way for us!

  2. W H Reply

    What is the maximum number of devices that can connect to one adapter? I cannot seem to find this answer anywhere.

  3. Don Pancoe Reply

    I’m trying to connect my Android tablet to a IOIO-OTG ( using this dongle. The IOIO board and the dongle are both powered, but neither the Android tablet nor my Bluetooth-equipped laptop see the IOIO. According to the IOIO Wiki (, this should be a plug-and-play operation. I will seek an answer through the IOIO community as well, but wondered if you have any thoughts. Thanks.

    • Bernie Thompson Reply

      Hi Don – Thanks for asking. We don’t have any experience with the IOIO-OTG, but expect it won’t have the full Bluetooth stack and recognition of the VID/PID of this particular USB Bluetooth adapter. Unless you can find another positive report, we’d expect it would not be possible. Sorry for the bad news!

  4. Travis Reply

    Hello again,

    I got the Bluetooth adapter from Amazon. Installation was fast and easy. I have Windows 8 Pro 64 bit after installing it the product was installed. I went to Broadcom and the latest drivers they have (Widcom software) supports it just fine. I’ve tested it out on my Bluetooth speakers on my nightstand and it works great.

    I do like that it has bluelight letting you know that is operational which is something my other adaptors didn’t have. Finally, BlueSoleil supports it was well but I’m even happier that it works with the Broadcom Widcom software as that software is much more reliable and easier to use.

    Nice product and great price. I’ll be back to get your USB 3.0 dock products. So far so good!!! I didn’t expect Windows 8 support and your customer service is 5 star. Highly recommend and will posting a 5 star review on Amazon.

    Thank you for responding.

  5. Graeme Reply

    Looking to change PC setup (Windows 8 environment). If I have multiple BlueTooth devices – do I need just one Plugable Bluetooth 4.0 LE (Low Energy) USB Adapter? or do I need one per device being attached (mouse , keyboard, speakers).
    thanks in advance!

    • Bernie Thompson Reply

      Hi Graeme, Bluetooth general (and our adapter in particular) supports 7 active devices at once (keyboards, mice, speakers, etc). So only one adapter covers it. In fact, most Bluetooth stacks (including Windows’) don’t support multiple bluetooth host adapters per PC, so you definitely want just one of those. Thanks for asking!

  6. Goran Reply

    hello Plugable
    I’m an interested costumer all the way from Macedonia.
    I consider to buy this product which I hope to use for fast madia transfer. I cannot find anywhere the MB/sec speed capability of this bluetooth 4 adapter. does it support the HS standard from Bluetooth 3.0 + HS which is using wi-fi-like network link. I will using it on desktop so the power consumption is not a concern for me; however the transfer speed is.
    thanks in advance

    • ellen Reply

      Hi Goran,

      Thanks for taking interest in our Bluetooth adapter! This particular adapter does not include the additional HS capabilities introduced with certain Bluetooth 3.0 devices. Sorry about that!

  7. Fred Reply

    Hi, I was just trying to install this on a SuSe 12.2 system and at first it would connect and then drop the connection to a Logitech bluetooth speaker adapter. I looked in the sound card setup area and saw VID and PID as editable fields and remembered that I had seen VID here. It’s actually in the announcement I’m replying to. I was wondering if there is a typo as you list two separate VID numbers but I suspect the second one (0x21e8) is actually the PID? Anyway, when I used those numbers as VID and PID it now connects and stays connected. Now all I need to do is get the system to use it for audio output. I configured my sound card no problem, but this is a bit puzzling – but I’ll get it.

  8. Gerald Reply

    Will you provide drivers for Android 4.2.2? I’d like to get this and plug it into my phone (Samsung Galaxy s4) so I can connect with bluetooth LE devices such as cadence, speed and heart monitors for cycling.

    • Bernie Thompson Reply

      Hi Gerald – Thanks for asking ahead! Drivers are not user-installable on Android. So it’s up to Google (and/or the handset and tablet makers). Right now, Android does not support the Broadcom chip we use, so this adapter won’t work on any Android system we’re yet aware of. But we’ll certainly announce it if they support it in the future. Thanks again!

  9. Peter Reply

    With this is, it possible to connect to 3 or 4 Bluetooth speakers at the same time ?( using xp at present.)

    • David Roberts Reply

      Hi Peter,

      Thank you for posting your question about the Bluetooth adapter. Unfortunately, due to limitations in the Windows software (all current versions(, it is only possible to connect one Bluetooth speaker or headset at a time. If you want to drive multiple speakers simultaneously, the best solution is to use Y adapters that allow you to connect two speaker sets or headphones to one source. I hope this helps. Please let me know if you have any more questions.

      Plugable Support

    • Bernie Thompson Reply

      Thanks for asking. While that information is wrong about firmware (there’s no proprietary firmware issues for Linux for this product), there are also no 100% guarantees on Linux.

      Linux kernels after June 2012 or so have support for this adapter. Support has been backported to kernels back to later point releases of stable kernels 3.0+, specifically 3.0.34, 3.2.20, and all versions of 3.4.

      However, just because you have a kernel driver that can talk to the adatper doesn’t mean it will do what you want it to — that depends on the higher level Bluetooth stack. The most common one on Linux is BlueZ, but it has limitations. And what versions of kernel and bluetooth stack you have is completely distro dependent. There are many variations, and we see many experiences.

      Hope that background helps. Bernie

  10. Tom Lupfer Reply

    I need to write a VB.NET application that can communicate to a portable device via BLE. I would prefer to run the application on Win7 but I’ll go to Win8 if necessary. Do you provide drivers and an API for Win7 or Win8?

    • Bernie Thompson Reply

      Hi Tom – You’ll want to use Microsoft’s stack, since that has the best and most stable API (better than the other alternative – which is Broadcom’s private API). Microsoft introduced support for Bluetooth Low Energy only in Windows 8. So you’ll have to make that move unless you’re sticking to classic Bluetooth. All the info you need is on MSDN, and that will all work with our adapter. Thanks!

  11. The Wim Reply

    Hi Bernie, a colleague of mine bumped into the maximum of 7 simultaneous connections to one host adapter. Would windows 8 support multiple hosts to arrive at numbers like 28 simultaneous connections or even 35? Or are there bandwidth limitations?

    • Bernie Thompson Reply

      Thanks for asking – actually, that limitation is baked into the Bluetooth spec. While you can have more pairings (that are inactive), you can only have up to 7 active devices. So nothing Windows 8 can do. Wikipedia has more detail:

  12. Alan Reply

    Hello, good afternoon. You can implement a Peripheral application using C # code for Bluetooth Low Energy. Is there any reference?

  13. Chad Kennedy Reply

    Hi Bernie / Plugable Support,

    We wish to develop an app using your USB-BT4LE adapter. A hard requirement for us is supporting Windows 7, which means using the Broadcom API. We are aware of the driver installation file you’ve provided ( However we really need the C SDK (header and lib files) along with the associated documentation in order to create an application that uses those drivers. According to Broadcom ( the drivers are vendor-specific and provided by the OEM. So presumably the OEM would be the one to provide the SDK? We are aware of the SDK here ( but it appears to be an older SDK for a different chipset that only supports Bluetooth classic.

    We’ve tried a great deal of googling and have been unable to find the needed SDK/documentation. Any guidance you can provide would be very greatly appreciated.

    Thanks and best regards!

    • Bernie Thompson Reply

      Hi Chad – Thanks for asking! I’m afraid Broadcom is giving a bit of a run-around here. Our drivers are not OEM specific in any way — they’re the straight-up Broadcom drivers. We don’t get involved with the SDK, only Broadcom can do that. So, unfortunately, we don’t have a better answer. This is really tricky, because so few people use Broadcom’s Bluetooth API, yet using chipset-specific APIs is the only option for Bluetooth LE/Smart on Windows prior to 8. Sorry for the bad news, hopefully Broadcom will come through for you. Bernie

    • Rich Powell Reply

      Do you know if Chad found an answer to his question. I am looking at a similar/same problem. I currently have software which talks to devices over ANT. I want to adapt that software to talk to devices over BLE but can’t force update to Windows 8.

      • David Roberts Reply

        Hi Rich,

        I’m sorry to say that the situation has not changed since Chad asked his question. Since there is an API in Windows 8, it seems unlikely at this point that a Broadcom chip-specific API for BLE will emerge for earlier versions of Windows, since it is not likely to see a lot of use.

  14. Laksmi Reply

    Hi Bernie,

    Do you have any driver specific for this chipset to be used in addition to the generic usb driver to use this module in platform with Android kitkat (bludroid) + linux (3.0.35).
    Is there any specific firmware required for this module to be used with Android platform.

  15. David Roberts Reply

    Hi Laksmi,

    Thank you for asking!

    I’m sorry to say that we have no specific drivers to support this configuration or firmware to support the Android platform at present. Sorry for the bad news. David

  16. Michael Reilly Reply

    I have been using the USB-BT4LE dongle with my headset on Windows 7 since November without problems. I recently received a Microsoft arc Blue Tooth mouse which uses BTLE. It does not appear to work with the Widcom drivers included with the dongle. I have used the mouse on my laptop running Linux (the laptop has builtin BTLE Hardware and Software). Should the mouse work on my Windows 7 PC using the USB-BT4LE dongle and the widcom drivers?

    • David Roberts Reply

      Thanks for commenting! Unfortunately, Windows 7 doesn’t have BTLE support so the Microsoft Arc mouse won’t work with it. Microsoft even mentions on the webpage for the mouse that it only works with Windows 8 and 8.1 computers. It looks like the Linux version you are using has BTLE support built in. I hope this answers your question.

  17. Michael Reilly Reply

    I was under the impression that the Plugable USB-BT4LE supported BTLE. Is this not the case? Or is there a limitation in Windows 7 which the Included Widcom SW cannot overcome?

    Thank you.

  18. ejone Reply

    Hello, as stated previously, it is possible to connect up to 7 devices at once. Is this also true for Bluetooth 4.0 low energy devices? I need to establish a network of nine BLE smart devices. Thank you!

    • David Roberts Reply

      In a typical LE application, you don’t want to maintain a constant connection between the host and client. Instead, a connection is briefly made, information is passed and the connection is closed. Under this paradigm, the limit on the number of devices tends to be based on other factors. If you contact us at with some more information about your application, we may be able to give more specific information.

  19. Herman Reply

    Hello, I purchased a Microsoft designer keyboard and mouse. when I first installed them they would disconnect when my system went to sleep. This left me with no way to wake up the system. I went into settings and turned off the energy saver for the Bluetooth adapter. I am now able to wake the system up with the mouse. The keyboard stays paired but not connected until I go to the Bluetooth icon, look at the Bluetooth list and touch one of the keys on the keyboard and then it connects. It stays connected for some period of time or until the monitors go to sleep then I have to go back to the icon and connect it again.

    any suggestion on how to make it stay connected like the mouse?

    • David Roberts Reply

      Hi Herman, Thanks for posting about this.

      I’m sorry that it isn’t waking up from the keyboard. This is a common problem in Windows, and can be caused on a lot of different levels. Often Windows 10 computers don’t maintain a connection with Bluetooth keyboards while they are asleep, but this could also be caused at another level of operation. Here are some of the things that have to happen for the keyboard to wake up the computer:

      1. Windows has to not issue the sleep command to the adapter when Windows goes to sleep. (This can be set in the Power Management tab for the adapter in Device Manager by deselecting “Allow the computer to turn off this device to save power” and selecting “Allow this device to wake the computer.)

      2. Windows has to not issue the sleep command to the USB port when Windows goes to sleep. (This can be set in the Power Management tab for the appropriate USB hub in Device Manager by deselecting “Allow the computer to turn off this device to save power” and selecting “Allow this device to wake the computer.)

      3. Windows internal Bluetooth software has to be turned on and ready to accept those requests. I have not been able to find a setting that guarantees this, although it is good to make sure Bluetooth Support Service in the Services is set to Automatic.

      4. The Bluetooth software in Windows has to retain its connection to the keyboard through Bluetooth even when it is asleep. This seems to be troublesome in Windows 10 and 8, but I haven’t found out how to change this.

      5. The keyboard has to be awake. You may be able to set this in the Power Management tab for the Bluetooth HID Device under Human Interface Devices in Device Manager by deselecting “Allow the computer to turn off this device to save power” and selecting “Allow this device to wake the computer.)

      6. The Power Options have to be set correctly. Please try deselecting “Allow the computer to turn off this device to save power” in the device manager settings for the adapter. If this doesn’t work, see if there is a similar setting for your keyboard.

      If the “Allow this device to wake the computer” is greyed out in any of the cases above, it could be that your motherboard/BIOS does not support this.

      So there are a lot of variables here. Generally people have not been successful with this in Windows 10, and a hard-wired USB keyboard might be the only solution. Some users have reported success using a mouse for the wake-up instead of a keyboard. Windows seems to be much more adapt at maintaining connections to mice while sleeping than with keyboards.

      Also, please go to the Control Panel >Power Options and select Change Plan settings for the plan that is currently selected. Select Change Advanced Power Settings, then under USB Settings, disable “USB selective suspend setting.” This often helps waking up issues.

      I hope this helps.


      • ceedveed Reply

        Thank you for the tips! I have not successfully been able to resolve this issue.

        I am trying to be able to wake the Windows 10 PC from sleep by using a bluetooth keyboard. Your tips above and others on the web have not worked for me.

        Any updates?

        • Andy D. Reply

          The comments left above are still accurate. It is not always possible to wake a PC using a Bluetooth input device in Windows 10 depending on what is supported by the PC’s other hardware components.

  20. Trevor King Reply

    Hello, Can you tell me the difference between Class 1 and Class 2 Bluetooth adapters, is it just on the transmit power, or is the receiving circuit more sensitive?

    I have a project where I would like to track mobile assets using Bluetooth low energy beacon tags by listening to the advertising packets.(without connecting)
    I would like to find out whether using a Class 1 adapter would make any difference on the listening range.


    • David Roberts Reply

      Thanks for asking! The class of a Bluetooth device refers to its transmitting power, not its receiving ability, so a class 2 or class 1 device would have the same sensitivity in reception. However, a class 1 adapter with an external antenna might be more sensitive to bluetooth signals from other devices than one with an internal antenna. Also, it helps to use a USB extension cable to raise the adapter up high away from possible interference from the computer, and also to eliminate any other sources of 2.4 GHz radio interference in the area, such as cordless phones, wireless security cameras, baby monitors, microwave ovens, wifi access points, and the like. USB 3.0 ports can also cause interference, so it is best to plug the adapter into a USB 2.0 port or use a USB 2.0 extension cable. I hope this helps!

  21. Lukas Reply

    Does this device give me the posibillity to use BLE with the Broadcom stack on windows 7??

    • Bernie Thompson Reply

      Hi Lukas – I’m sorry I replied incorrectly this morning. Broadcom’s stack doesn’t reliably provide LE support on Windows 7. An API is needed to make that useful, and that’s only present on Windows 8 and up. So I’m sorry, if you’re a Windows 7 user there aren’t any options that will do what you’re hoping. Hope that background helps, thanks!

  22. Krishna Prasad Reply

    Hi.. We are looking to buy this USB plugable BLE adapter, which supports Linux(Ubuntu 14.04). Is the driver stable for Linux ? because we are looking for plug and use as we want to test something urgently. Seeking a swift response.

    • Andy D. Reply

      Support for Linux kernels 3.0.34 and later (basically, kernels after June 2012 or so) have support for this adapter built in. Ubuntu 14.04 shipped initially with kernel 3.13 in April 2014, so it is supported.

    • David Roberts Reply

      Thank you for asking! This adapter is compatible with the latest version of Windows 10, and it is compatible with the Logitech receiver. If you have any questions or issues, don’t hesitate to contact us at Thanks!

  23. Mohit Khanna Reply

    I want to develop a Peripheral application in C# in Windows 7 or Windows 8.1 with a BLE dongle. I tried using CSR4.0 dongle but it does not support Microsoft BLE Stack and BLE Enumerator is not shown in USB devices under Device Manager. Will this dongle work as desired by me ?

    • David Roberts Reply

      Thank you for asking. Bluetooth Low Energy is not supported at all in Windows 7, and support in Windows 8.1 is limited. Generally support for BLE in Windows is best accomplished in Windows 10 using the Universal Windows Platform APIs

      • Mohit Khanna Reply

        Thanks for your reply David. I have WIndows 8.1 installed and still not able to connect BLE device using Microsoft API. I think CSR dongle does not support Microsoft stack. As I am working on a desktop machine I need a BLE adapter(dongle) to connect to BLE device. Can you please suggest which dongle supports Microsoft Stack and I can develop application in C# to connect BLE using Windows API

  24. Boyd Dugan Reply

    I purchased the following last night after someone answered my question on Amazon asking if this was class 1 or 2. They answered that it was a class 1. Now someone said that answer is incorrect and that it is a class 2. I really wanted a class 1. Can you please confirm what class this is:

    Plugable USB Bluetooth 4.0 Low Energy Micro Adapter (Windows 10, 8.1, 8, 7, Raspberry Pi, Linux Compatible; Classic Bluetooth, and Stereo Headset Compatible)

    • David Roberts Reply

      Hi Boyd,

      Thank you for posting. I was the one that posted the answer you saw. This adapter is a Class 2 device, as are the vast majority of consumer Bluetooth devices, so it has a specified range of 10 meters (33 feet). As I mentioned in my answer on Amazon, even if you buy a Class 1 Bluetooth adapter for your computer, you will only see extended range if the peripheral device you are connecting is also a Class 1 device. The range is limited by the weakest device is the connection, since they have to communicate back and forth. It’s as I mentioned in the answer, even if a major-league baseball player threw a ball to me at home plate from the outfield, with my weak arm, I wouldn’t be able to throw it back to him. In the same way, even though a Class 2 peripheral device can hear a Class 1 device at 100 meters, the signal from the class 2 peripheral device will only travel 10 meters, so the Class 1 device won’t be able to hear it. This blog post explains this situation:

      I hope this helps!

      • Boyd Dugan Reply

        Thanks David!

        Your message was VERY informative. In my limited research of class 1 and 2 adapters I never saw this information. I doubt I will return it after reading your information. I will be using it for a Bluetooth speaker and some transferring of data (mostly pictures) from my iPhone to my PC. I had purchased a real cheap adapter off eBay some time ago, but I always had to fiddle and restart to get it to work, it didn’t come with any instructions and I always got a error code 43 when I tried to use it. I hope this little adapter from you will work on my 1 year old HP Laptop with Windows 10. It sounds like it should, it has the best reviews. Again thanks David!


      • Boyd Dugan Reply

        I am having difficulty with this device. I cannot get it to connect to my Bluetooth speaker. I have tried many many times. One time I somehow got the speaker to work, but only that once. I have made sure no other devices are connected to the speaker, I can (sometimes) get it to show connected in both Bluetooth settings and when I right click my speaker icon on the computer, but no sound. I have found out that iPhone does not allow to transfer via Bluetooth to a PC, but that is my problem, not yours. I just wish I could easily play my nice Harmon Karmond Onyx mini Bluetooth speaker. It is very frustrating. If I can’t figure it out I will have to return to Amazon. If you think you can help let me know.

  25. Sandro Köppen Reply

    Hi, can this Adapter and driver used to let a Windows 10 system itself act as a peripharel?

    • David Roberts Reply

      Hi Sandro. Thank you for your question. With the Bluetooth adapter connected to a Windows 10 computer, you can enable a setting that allows the computer to be discovered by certain types of Bluetooth devices. For example, you could pair a smartphone with the computer and stream audio from the smartphone so it plays through the PC’s speakers. However, the computer typically acts only as a host for other devices.

  26. brooks Reply


    I am wondering since this is compatible with Windows 10, and Xbox One apparently runs Windows 10, could I plug adapter into Xbox One to use Bluetooth Headset? Maybe need to install the driver somehow.

    • David Roberts Reply

      Thank you for asking! Unfortunately, this adapter will not work with the Xbox One. It will only work with supported computers.

  27. David Reply

    Will your adapter allow me to use my Microsoft designer keyboard and mouse in the bios? With the adapter I have now, I have to connect a wired mouse and keyboard to do any bios work.

    • David Roberts Reply

      Unfortunately, unless your computer has BIOS support for the Bluetooth Low Energy that the Designer Keyboard and Mouse use, our adapter will also not work. Generally speaking this support is rare, and the fact that your existing adapter doesn’t work in this way means that the Plugable adapter won’t work either.

  28. Zachary Reply

    I just bought this Plugable adapter, hoping it would enable me to have bluetooth to work with my new Anker portable audio box because my computer is old, an HP Z200 workstation which has Windows 7, but not luck at all. Any help would be very appreciated.

    • David Roberts Reply

      Hi Zachary,
      Thank you for posting. We would be happy to help with this. Please contact us directly and let us know the model of your Anker audio box. Thanks!

      • Zachary Reply

        Thank you very much, David, but I solved the problem with help at the HP forum. “Plugable’s New Bluetooth 4.0 (Low Energy) Adapter” is doing a great job with Anker bluetooth speaker. Thank you again!

  29. Richard P GODDARD Reply

    I have this adapter and am trying to send a video from my phone to the PC and it’s taking FOREVER! What is available to help remedy this problem?

    • David Roberts Reply

      Hi Richard, Thank you for posting. Unfortunately, Bluetooth is just about the slowest way to transfer files, and even a single photo can take up to 30 seconds. The reason is that Bluetooth has extremely limited bandwidth compared to other transfer methods. Video files are many times larger that photo files and can take a very long time and also because they are so large, the connection can time out on either the phone or the computer side before the transfer is finished. I would recommend using another connection method if possible, such as a direct USB connection or sending the file over wifi or the internet. I’m sorry I can’t give a better answer. This is just a limitation of Bluetooth itself.

      • Richard P GODDARD Reply

        I mean it takes several minutes not seconds and it never actually finished the transfer.

  30. Khanh Vu Reply

    i just bought this bluetooth adapter to use with my windows 10. It fails to connect to any of my bluetooth devices (phone, laptop, speaker, headphone). I will return this and very disappoint.

    • David Roberts Reply

      Thank you for commenting. We can help with this. Often connection problems happen due to driver problems or pairing issues that we can discover and correct. Of course if the adapter is faulty, we will replace it immediately. Please contact us at

  31. Peter Franklin Reply

    Does this device support “Bluetooth Low Energy Peripheral Role” on Windows 10? I need one that has that capability.

    • David Roberts Reply

      Hi Peter,

      Unfortunately, our Bluetooth adapter does not support this role. I’m not sure what USB-Bluetooth adapters would.

      Plugable Support

  32. Pedro Reply

    Hi, I am using this adapter under windows xp and works fine…for one device (slave SPP), but when i try to connect another one (SPP), it doesn´t create an extra COM Port, what it does is disconnect the current device and connect the new device in the same COM port. What can i do to accomplish what i need?

    • David Roberts Reply

      Hi Pedro,

      Thank you for commenting. Unfortunately, one Bluetooth adapter is only able to connect to one SPP device at a time (this is also the case with audio devices). The only way to create another SPP connection would be to add another Bluetooth adapter, but Windows does not allow more than one connected Bluetooth adapter at a time.

  33. Berry Johnson Reply

    Plugable Bluetooth 4.0 wireless device is successfully working in my both Windows or Linux computer system.

  34. Mohamed Reply


    We are using Raspberry Pi 3 Model B device in our applications, and we intend to use plugable BLE after disabling the onboard BLE for better performance, the objective is for Smartphones (iOS and Android) to control RP board. A couple of questions need your input:

    * Is Plugable BLE dongle is truly plug and play on Raspberry Pi 3 Model B – Debian OS once plugged or a structured deployment process is engaged.

    * I understood that it is Class 2 however, our application needs read distance around 10 cm distance (Class 3), is there a way to set the class to be (3) to meet such objective

    • Andy D. Reply

      The driver support for the adapter is built into the kernel of Linux, and a lot of the support for Bluetooth Classic and Bluetooth Low Energy profiles is handled using the BlueZ project. So yes, the adapter is plug-and-play, but it is worth noting that sometimes BlueZ can have bugs in it regarding various Bluetooth functions. So if you encounter a problem, be sure to update BlueZ and/or the version of Raspbian.

      With regards to Bluetooth range classes, the range is always limited by the most limited class. In other words, if you connect a class 2 device like the Bluetooth adapter to a Class 3, it will be limited to Class 3. Similarly, a Class 1 adapter would be limited to Class 2 or Class 3 if the devices connecting to it are using one of those two classes.

      • Mohamed Reply

        Thanks for your response, we already started upgrading the RP OS at the moment since BlueZ is the latest, I will post you in case of failure.

        For Class 1 question, surely I know your feedback however, I meant both devices are class 1 (CSR dongle & Smartphone) and for security reasons we need to have such communication/pairing for like 10 cm, hence need to downgrade CSR class from 1 to 3 as such, how to achieve that ?

  35. Cindy Moll Reply

    HI, I purchased the Plugable Bluetooth USB adapter to make my Heos gen 1 speakers Bluetooth compatible. After purchasing four of them, from what I can tell, the only purpose of this adapter is to make a laptop or desktop Bluetooth compatible. Is that correct?
    My laptop has that function built in. Is there a way to use the adapter in a speaker?

  36. Cindy Reply

    HI, I purchased the Plugable Bluetooth USB adapter to make my Heos gen 1 speakers Bluetooth compatible. After purchasing four of them, from what I can tell, the only purpose of this adapter is to make a laptop or desktop Bluetooth compatible. Is that correct?
    My laptop has that function built in. Is there a way to use the adapter in a speaker?

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