Sony HKCU-SDI30 12G-SDI Interface Kit

The HKCU-SDI30 is the optional 12G-SDI interface board for the HDCU-3100 and HDCU-3170 camera control units. Fitting it lets the CCU move a 4K signal down a single BNC cable.

That matters most where cable runs are already crowded: one coax per camera through a truck or a machine room, with the same 4K signal at the other end. The kit ships as a board with its internal cable loom and fixings, and installs into the CCU.