USB2 A Female to A Female Low Profile Panel Mount Coupler – TUK LTD KCUABBpm, This USB A female to female B panel mount coupler can easily be mounted into panels of virtually any thickness. It can be used to convert from USB A to USB B and is suitable for both USB1.0 and USB2.0. It is also supplied with both M3 and 4:40 flathead screws, which ensures a flush and aesthetically pleasing finish. TUK Ltd KCUABBpm USB2 A f to B f ReversIble Low Profile Panel Mount Adaptor