The ST121HDBTPW video extender kit enables you to extend HDMI audio/video up to 330' (100m) over a single CAT5e/6 cable. For added versatility, the extender kit supports Power over Cable (POC), which allows power to be sent over the CAT5e/CAT6 cable, powering both the transmitter and receiver with just one adapter. To help you save installation costs, the extender kit can be installed using new or non-existing non-proprietary Ethernet infrastructure wiring with the included mounting brackets. Plus, with support for High-Definition resolutions of up to 1080p and 4K plus the accompanying digital audio, the HDMI extender lets you get the most of your high-end A/V equipment.The HDMI extender kit includes both the local transmitter and remote receiver units - perfect for point-to-point digital signage applications. To add to the maximum extension distance, the HDMI extender supports HDMI cables up to 32ft on both the local and remote ends.