topic Re: R5ii usbC splitter in EOS DSLR & Mirrorless Cameras

EOS R5 Mark II usbC splitter work around to use vmount battery for power supply

kailing — Sat, 25 Oct 2025 03:16:31 GMT

I've built a half decent video rig - R5ii, vmount battery, monitor, cage, side handle, etc etc. it does what I need at the moment.

The issue I'm having is that to use the vmount battery for power supply to the R5ii I need to use the usbC port, however I use this for camera control through the monitor.

Has anyone found a work around? Like a PD/data usbC splitter? Dummy battery that actually works?

Monitor power output is half whats required to charge the R5ii so I can't daisy chain through.

Re: R5ii usbC splitter

p4pictures — Fri, 24 Oct 2025 23:16:27 GMT

The Canon DR-E6P DC Coupler is the one designed to power the EOS R5 Mark II. It's a dummy battery that fits in the battery slot. The DR-E6P has a USB-C female port on the end of the cable so you could feed a power to the camera from the V-mount battery and then you have freed up the camera USB-C port for the monitor.

Lots of third party DC couplers are based on the older DR-E6 model and don't allow the EOS R5 Mark II to operate.

Re: R5ii usbC splitter

Waddizzle — Fri, 24 Oct 2025 23:41:19 GMT

USB splitter? Not possible.

USB uses a serial communication protocol derived from RS-232, which was commonly used for computer printers.

This means a one-to-one communication connection. Not one-to-many or many-to-one.