The 031-70554-12G: It's a male pin, free-hanging (in-line) connector with a bayonet lock, rated to 12 GHz. The 75 Ohm impedance and 12 GHz bandwidth make it a natural fit for high-definition video, broadcast, and CCTV installations where signal integrity at higher frequencies matters.
Cable Match and Crimp Termination
This plug is factory-specified for Canare L-3.3CUHD cable — a 75 Ohm coax with a 3.3 mm diameter, commonly used in broadcast runs. The center contact and shield ferrule both crimp, so you'll need the correct crimp die set for that cable's outer diameter.
Durability and Finish
The bayonet lock gives a positive mechanical mate without tools.