Amazon.com: AV Access HDMI Extender Over Cat5e/6a/7 up to 1080P@60Hz 164ft/50m with IR Remote Control, FHD HDMI Balun, Supports PoE/PoC Function : Electronics
Blackbird PoC and PoE Mid-Spam HDBaseT Power supply converter for 24v or 48v | eBay
What is Power over Ethernet (PoE) & Power-over-Cable (PoC)?