Wired HDMI extenders send audio and video through a dedicated HDMI, Category, or HDBaseT connection, making them well suited for commercial distribution, longer runs, and retrofit projects with existing Cat 5e, Cat 6, or Cat 6A cabling. Wireless HDMI extenders can simplify residential installations or spaces where new cable is difficult to route, while features such as HDMI loop-out and infrared control can help support local displays and source-device operation.

Plan for a single category cable, such as Cat 5e, Cat 6, Cat 6A, or Cat 7, between the transmitter and receiver, with the required cable type and distance depending on the resolution and extender design. Power may come from local adapters or Power over Category (PoC) or Power over Ethernet (PoE), which can allow one unit to power both ends, so verify the extender’s wiring and power requirements before installation.

HDMI extenders multiplex video, audio, and supported control signals through a single connection, such as Cat 5e, Cat 6, or Cat 6A cable, then separate those signals at the receiver for connection to the display and connected equipment. Depending on the extender, additional pass-through channels can carry infrared control, RS-232 commands, Audio Return Channel (ARC), or USB signals for applications such as remote device control, audio routing, and keyboard-and-mouse access.

Check that the extender supports the source and display’s HDMI version, resolution, refresh rate, chroma format, HDR format, and audio requirements, along with the appropriate Category cable for the installation distance. Confirm that the source, extender, and display share compatible High-bandwidth Digital Content Protection (HDCP) requirements, such as HDCP 2.2, and review EDID, control, ARC, or downscaling features when the system includes mixed display capabilities.