The intent of this thread is to gather together, in one thread, all the hardware devices you've found to be compatible with your A2109 tablet. If you've tried a device and found it works properly with your A2109, please post to this thread the make and model number/name of that device. If there are any non-standard requirements such as rooting and/or ROM's etc. required in order to use the device, please include that information in your post as well. Putting the type of device in the title of your post would also be helpful for anyone looking for a particular device type. Hopefully, this information will be helpful to anyone looking for dongles, keyboards, headsets etc. and will eliminate finding out after you've bought a new device that it doesn't work with your tablet for whatever reason. Obviously, this will only work if people take the time to let others know what they know about a particular device.