Under Mount USB Extension Holder

Under mount usb extension holders designed for use with Monoprice USB extensions, though will probably work with most usb extensions.

There are 2 versions of each USB2 and USB3 holder, for whether you want to be able to remove the usb extension or not. The removable versions also have an experimental version that includes supports. Be sure to print with a 0.2 or smaller layer height or the slicer will probably mesh the supports with the holder.