Plugable USB Charging Adapter


  • Allows phones and tablets to charge even when your computer is in sleep mode.
  • Enables faster charging of phones and tablets by drawing optimal voltage from the computer.
  • Keeps devices safe from juice jacking at public charging stations
  • Works with all tablets and phones on the market
  • Small size and simple design that make it easy to carry around and straightforward to use

Product Description

The USB-MC1 is a charging adapter that can be plugged into USB ports to enhance the charging of smartphones and tablets. USB devices were not originally designed with charging in mind.
Therefore, they only draw 100mA from the host computer instead of the optimal 1A. The USB-MC1 sends a non-standard signal to the USB port that disables data transfer and allows for optimal levels of voltage to be used to charge the device. It can turn any powered USB port with the 1A capability into a universal charging port.

Furthermore, this has the added bonus of preventing juice jacking by disabling the exchange of information between the device and any potential hacking equipment in public charging stations.

In the box

One USB male A to female A adapter.

USB Charging

Battery charging over USB has become a standard practice but the actual charging behavior of different devices is often unpredictable and sometimes disappointing. The devices themselves decide how much current to draw and manufacturers haven’t settled on a single standard. We constantly test our products with as many different devices as possible and publish the results so it’s easy to determine the charging behavior to expect from your device on each of our USB products. These are the results for the devices we’ve tested on this charger so far.

For hubs, "Hosted" means the hub is attached to a host computer that is powered on. "Unhosted" means just the opposite, that the hub isn't attached to a host computer, or that the host computer is turned off. This doesn't apply to stand-alone chargers that only plug in to a wall outlet.

The "Estimated Charging Time" column is the minimum amount of time that the device would take to charge if it was fully drained. This is just an estimate! We provided this to give a general idea of the expected charge time. If this column is blank for a device, that means that the device indicated that it wasn't charging. In this case, even if the device is drawing power, it will likely either "tread water" keeping the battery at a constant level, or slowly lose ground.



How many of these adapters can I safely use with my PC’s USB ports or hub’s ports at once?
The AC adapter of your powered hub needs to be rated for at least 1A per USB charging adapter connected. If it does not supply sufficient power, over-current may be triggered (causing all power to the hub to shut off), or the hub circuit or power supply may heat up from too much current being pulled through.

How many adapters do I need to turn my 10 Port USB 2.0 Hub into a 10 port charging station?
Unfortunately, you won’t be able to turn your 10 Port USB 2.0 Hub into a 10 port charging station as the USB hub comes with a 2.5A AC adapter. This means that you can charge at most 2 devices using the USB Charging Adapters, because each adapter will consume 1A leaving .5A for any other devices on the hub.

How many of these adapters can be safely used on a PC at once?
If you have an iPad or other tablet, and your PC won’t charge it when on, this adapter can help. Laptop and computer motherboards are usually designed to supply 2A or more power to their 2-4 USB ports. Most will have no problem if 1A is going to a single port. So we’d recommend staying with just one adapter, unless you see it can support more.

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