Amphenol Pcd also offers harsh environment USB Memory Keys with capacities ranging from 1-256GB.  Threaded and bayonet coupling versions are available. 

Another option is the USBFTV SC which offers a new spring loaded coupling solution, particularly for applications requiring quick disconnect.  The system consists of a circular spring within the receptacle keeping the plug mated and creating an internal coupling mechanism.  Amphenol has also developed memory keys around this connector series.

See our new video here.