USB A 3.0 to Screw terminal. Conec2 Snap-in Module featuring USB (A) 3.0 Screw terminal to the rear Simply snaps into place in Conec2 (50mm) Faceplates. The Conec2 CLB50-USB-3.0 is a 50mm Snap-in Module featuring USB (A) 3.0 connector on the front of the module and Screw terminal to the rear.