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Plugable USB 2.0 802.11n Wireless Adapter
$11.95 USD
SKU: USB-WIFINTAmazon Rating : (1191 Reviews)
Features
- Compact WiFi—Add 802.11n (Wi-Fi 4) Wireless N network connectivity at up to 150Mbps in an incredibly small package. Perfect to upgrade an older computer or bypass a broken wireless card. 2.4GHz support only. Does not support 5GHz Wi-Fi
- Windows Compatible—Driver downloads provided for Windows 10/11, 8.x, and 7. Not compatible with Win RT. Uses the Realtek RTL8188EUS chipset. Automatically installs in Windows 10 and 8.x with another active network connection. Drive built into Windows 11
- Backwards Compatibility—Backwards compatible with Wireless G/B networks and USB 1.1 ports. Supports Ad-hoc and Infrastructure modes. Please note: Windows 11, 10 and 8.x do not support using wireless adapters to create a hotspot (Ad-hoc network)
- 2-Year Coverage, Lifetime Support—Every Plugable product, including this USB Wi-Fi adapter, is covered against defects for 2 years and comes with lifetime support. If you ever have questions, contact our North American-based team - even before purchase
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Compact Easy-to-Add WiFi
The Plugable Nano WiFi USB Adapter is a simple way to add WiFi to a desktop, or to keep plugged into a laptop whose built-in WiFi isn't working anymore.
Simple, sturdy, and compatible with Windows 11, 10, 8.x, and 7. The adapter is ready to work on most devices out of the box, with drivers available separately for download (not included with the adapter).
Compliant to the Wi-Fi Alliance's Wi-Fi 4 specification, with backward compatibility to previous WiFi standards, this adapter can establish up to a 150Mbps link rate to a 2.4GHz wireless access point for a fast and stable connection.
The adapter fits snugly against the side of your laptop or PC, reducing the likelihood of breakage and staying out of the way of your other devices. The unobtrusive red LED inside the adapter helps indicate wireless activity while keeping your focus on the task at hand.
Choose Better Connection Stability or Better Performance
WiFi relies on a harmony between your router, and the device connecting to it. In less populated areas be sure that your access point uses 40MHz channel widths (instead of 20MHz) to get the optimal performance from the adapter, otherwise performance will be halved. However, for more dense urban environments, it may be necessary to use 20MHz channel widths to compete with surrounding radio interference.
Due to being a single-band adapter, the adapter will only connect to 2.4GHz access points. 2.4GHz WiFi technology has the advantage of offering better range than those using 5GHz.
Configuring for the Best Connection While Avoiding Wireless Interference
To get the best performance, there are technical considerations to make. Be sure that the adapter is plugged into the front of your computer if using a tower-style PC, use a USB 2.0 port (instead of USB 3.0), and try to keep a clear line-of-sight between your WiFi adapter and the router. This will help to avoid common sources of 2.4GHz wireless interference in order to provide optimal range and performance.
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Understanding and Troubleshooting Network Performance
Computer networking is a complex topic. In this article, we'll be taking a deep dive on the nuances of network performance for those who need some additional explanation while striving to be concise, and to educate users of various experience levels relating computer hardware and computer networking.
If you just need to know how to perform a network performance test/benchmark, jump down to configuring iPerf.
Core Network Concepts
LAN vs WAN
With regards to network performance, it is crucial to first separate whether an issue is with Wide Area Network (WAN) performance, or if the issue is with Local Area Network (LAN) performance.
Your LAN is essentially the network inside your home or business. Many homes use a combination modem/router device provided by their Internet Service Provider (ISP). In some cases, especially in businesses, you may have a separate modem and router, along with other equipment connecting to the router such as a network switch.
Your modem, and the connection it establishes to your ISP—whether through coaxial cable, fiber, phone lines, or long-range wireless—essentially marks the point between the WAN and the LAN. The connection your modem makes to your ISP is the WAN, and any devices you connect through your router behind that modem belong to the LAN.
Link Rate
Almost every type of connection your computer makes to any piece of hardware will have a link rate of some kind. The link rate establishes how fast data can possibly be transferred across any given connection, but it does not guarantee how fast the hardware on either end of the connection will actually transfer data.
The concept of link rates, and their related bottlenecks, is likely best conveyed by giving an example of what connections might be involved in transferring a file from one computer on your LAN to another.
- 800Mbps—The file source is a USB 3.0 thumb drive capable of 100MB/s (800Mbps) read/write.
- 480Mbps—The USB 3.0 thumb drive is plugged into a USB 2.0 port on the PC, which has a maximum throughput of 480Mbps
- 1000Mbps—PC1's Ethernet connection establishes 1Gbps (1000Mbps) link to the router via Ethernet
- 300Mbps—The router connects to a second PC (we'll refer to this as PC2) via Wi-Fi, and it has established a 300Mbps link to the Wi-Fi adapter on PC2
- 480Mbps—The Wi-Fi adapter on PC2 is connected via a USB 2.0 port. The link rate of the USB connection to PC2 is at 480Mbps
- 6000Mbps—PC2 is going to store the file on an internal hard drive with a link rate of 6Gbps
- 1600Mbps—File Destination: SATA hard drive capable of 200MB/s (1600Mbps) read/write.
Following this chain, we see that 300Mbps is the slowest link rate established. This means that, regardless of the link rates established elsewhere, the absolute maximum the data can possibly be transferred is 300Mbps.
if we were to change the Wi-Fi connection to a wired Ethernet connection capable of 1Gbps, our performance bottleneck would then become the USB 2.0 connection to the USB drive where the file is stored.
Ports and Interfaces
Interfaces
A network interface represents connections, whether wired or wireless, that are made to form a network between devices.
Ports
Some may refer to physical hardware connections as "ports". For the purposes of networking, ports are logical constructs that can also be referred to as "network ports". Each network interface has 65,535 of these logical ports. Each port on a network interface is a separate data connection.
Benchmarking Network Adapter Performance
To properly benchmark network adapter performance, we need to:
- Use a simple LAN configuration
- Eliminate bottlenecks, especially link rate bottlenecks
Websites like speedtest.net, fast.com, and other performance tools in your web browser are going to use your WAN connection, and are not appropriate for determining if a network adapter is working well.
Transferring files from one computer to another on your LAN is typically not the best way to benchmark a network adapter. File transfers are bottlenecked by a number of things, including performance limitations of the disk the data is on, and often times a lack of establishing parallel network connections to perform the task.
One of the most accurate ways to benchmark network performance on a LAN is by using iPerf . To more effectively benchmark network adapter performance, it is best to establish a point-to-point connection between two PCs, rather than connecting through a router or switch.
Configuring iPerf
To test a connection using iPerf, you'll need at least two network interfaces, and preferably two computers. You'll also need to know the IP (Internet Protocol) address assigned to each network interface . One network interface will function as an iPerf server, and the other network interface will function as an iPerf client. Lastly, you'll need to download the version of iPerf 3.x that's appropriate for your computer's operating system and extract/install it .
Windows
- Make sure the drivers for both network interfaces involved in the test are using up-to-date drivers. Drivers for Plugable products can be found here.
- Download and extract iPerf for Windows
- Open Command Prompt
- Press Windows Key + R or + R, then enter
cmdin the window that appears - Search the Start Menu for
Command Prompt, and open it
- Press Windows Key + R or + R, then enter
- Navigate Command Prompt to the directory the directory where iPerf is located
- The
cdcommand is for 'change directory'- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
cd %USERPROFILE%\Desktop\iperf
- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
- The
- Run iperf in server mode via Command Prompt
iperf3.exe -s
macOS
- Usually it is best to install iperf on macOS using brew in Terminal
- Make sure the drivers for both network interfaces involved in the test are using up-to-date drivers
- Open Terminal
- Run iPerf in server mode
iperf3 -s
Linux
- Usually it is best to install iperf using the package manager in your Linux distro. For example, in Ubuntu, use
apt: sudo apt install iperf3
- Make sure the drivers for both network interfaces involved in the test are using up-to-date Drivers
- Open Terminal
- Run iPerf in server mode
iperf3 -s
Next, you'll need to run iPerf in client mode, targeting the IP address of the server/interface where iPerf is running in server mode. Additionally, we'll run the test for 30 seconds using -t 30 and with four parallel connections using -P 4. Running 4 parallel connections is optimal for saturating a network link.
Windows
- Open Command Prompt
- Press Windows Key + R or + R, then enter
cmdin the window that appears - Search the Start Menu for
Command Prompt, and open it
- Press Windows Key + R or + R, then enter
- Navigate Command Prompt to the directory the directory where iPerf is located
- The
cdcommand is for 'change directory'- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
cd %USERPROFILE%\Desktop\iperf
- If you have a folder named 'iperf' on your Windows desktop, you can reach it in command prompt with the command
- The
- Run iperf in client mode via Command Prompt (replace 192.168.0.200 with the IP address of the server/interface where iPerf is running in server mode)
iperf3.exe -c 192.168.0.200 -t 30 -P 4
macOS / Linux
- Open Terminal
- Run iPerf in client mode (replace 192.168.0.200 with the IP address of the server/interface where iPerf is running in server mode)
iperf3 -c 192.168.0.200 -t 30 -P 4
iPerf should start performing a network performance test. If the test fails to start, make sure that iPerf is not being blocked by your PC's/Mac's firewall.
Why iPerf is Ideal for Benchmarking
Unlike a file transfer, iPerf runs in memory on the PC and generates data to send using the CPU directly. This alleviates potential bottlenecks generated by storage devices, and allows you to explicitly control how many parallel connections are being used to transfer data rather than being unsure if parallel network connections are being used by other means.
Conclusion
There's a lot more to networking that isn't covered in this article, but we hope this helps explain enough to get an accurate measure of your network performance.
If you need assistance with your Plugable product that features network connectivity, please contact us for further assistance.
If USB 3.x Is Newer and Faster, Why Does Plugable Recommend Using a USB 2.0 Port Instead of a USB 3.0 Port With USB 2.0 Wireless Adapters?
In part, because the higher speed of the USB 3.0 port (also known as USB 3.1 Gen 1 and USB 3.2 Gen 1) offers no advantage if the device itself is USB 2.0. For Plugable's USB 2.0 Bluetooth and Wi-Fi adapters, the performance is far below even the throughput of USB 2.0.
Also, the adapter itself is a USB 2.0 device and there is a critical issue that was overlooked in the design of USB 3.0 specifications. Many USB 3.0 ports leak broad-spectrum radio interference in the 2.4GHz to 2.5GHz range, which is the same radio band used by Bluetooth and Wi-Fi
While this interference can be reduced through heavy shielding, it cannot be entirely avoided as it is inherent to the core design of USB 3.0. USB 2.0 ports do not have this issue. However, a USB 2.0 port that is in close proximity to an in-use USB 3.0 port may also be affected by radio noise leaked by it.
Why Shouldn’t I Plug Wireless Adapters In at the Back of My Computer? I Don’t Really Have Any Ports on the Front. Given That, What Am I Supposed to Do?
Components inside a tower-style computer case are largely exposed, and there is very little shielding to reduce the radio interference they produce. This is particularly true at the rear input/output panel of a PC. This is why cables that are designed to plug into the back of a computer often have a ferrite bead attached to them, to reduce radio interference. Also, the wireless signal weakens as it travels through the metal and plastic computer case and goes past the noise-producing components.
If you don’t have a port available on the front your PC, consider using a USB 2.0 hub to add ports located away from the back of your PC, or use a USB 2.0 extension cable to move the adapter to a location in line-of-sight with your receiving device.
The Documentation Says This Wi-Fi Adapter Should Get 150Mbps, but I’m Getting Way Less Than That
Without getting into too many details, the 150Mbps value represents the maximum “Link Rate” of the adapter, which essentially tells you what wireless specifications are being used for the adapter. Environmental factors such as surrounding radio interference, distance from your access point, and other issues will reduce the performance and possibly the link rate being achieved. 150Mbps (18.75MB/s) is the theoretical maximum transmission speed that can be achieved providing all conditions are ideal, such as in a radio testing facility. For home and office use, there will always be factors that reduce performance.
If you are consistently seeing a link rate of 72Mbps reported by your operating system, this is either due to a configuration error on the router you are connecting to, or because of limitations on the router. If the router’s 2.4GHz channels are set to use 20MHz widths, the link rate will never exceed 72Mbps. To get the 150Mbps link rate, the router must be using channels with 40MHz widths.
How To - Set a Network to Private or Public in Windows 10 & 11
The Windows Firewall may block some networking features when the local network is not set to Private. This article will describe the process for setting the local network, either wired Ethernet or Wi-Fi to be a Private network.
Windows 11
1 - Connect the computer to the network, either wired or wireless
2 - Open the Windows Settings - right-click on the Start Menu and select “Settings” from the pop-up menu
3 - On the left column select “Network & internet”
For Wired Networks
4 - Select the “Ethernet” option
5 - The connected network should be expanded, if not click on “Network Connected" to expand the section
6 - Select the “Network profile type” either “Public network” or “Private network” to suite your needs
For Wi-Fi Networks
4 - Select the “Wi-Fi” option
5 - Select your Wi-Fi network name “properties”
6 - Select the “Network profile type” either “Public network” or “Private network” to suite your needs
Windows 10
1 - Connect the computer to the network, either wired or wireless
2 - Open the Windows Settings - right-click on the Start Menu and select “Settings” from the pop-up menu
3 - Select “Network & Internet” fro the bottom section
4 - Select the “Ethernet” option from the left pane
5 - Select the “Connected” network from the right pane
6 - Select the “Network profile type” either “Public network” or “Private network” to suite your needs
Windows PowerShell
If the option does not show up in the Windows Settings GUI, or if you prefer to use the terminal.
1 - Open a new terminal: Right-click on the Start Menu and select “Terminal”
2 - Run the following command to list the available networks
Get-NetConnectionProfile
PS C:\Users\plugable> Get-NetConnectionProfile Name : Network InterfaceAlias : Ethernet Instance 0 InterfaceIndex : 7 NetworkCategory : Private DomainAuthenticationKind : None IPv4Connectivity : Internet IPv6Connectivity : NoTraffic
3 - Run the following command to set the network to Private
Set-NetConnectionProfile -Name Network -NetworkCategory Private
Where “Network” is the network name from step #2 and “Private” can be either “Public" or “Private”
