Datavideo DDC-4012H

The DDC-4012H is an in-line XLR DC-DC voltage regulator that sits between a battery and a powered device to deliver a clean, steady output. It automatically accepts an input anywhere from 15 to 50V DC and regulates it down to 7.2V, 8.4V, or 12V depending on the output switch setting, so a single high-voltage battery or supply can run gear that expects a specific lower voltage. This makes it a practical bridge when a V-mount or industrial pack does not match a camera, monitor, or accessory rating.

The regulated feed exits on a 2.1 mm locking-collar DC output that stays seated under cable strain, and the unit delivers up to 48W / 4A. It also supports 48V pass for use with the Datavideo PD-6 power distribution unit, tying it into a larger on-set power chain. The compact in-line form factor keeps it out of the way on a rig or in a rack.