For one source and multiple displays, choose an HDMI signal booster with enough outputs for the connected screens, and select a distribution amplifier when the displays are located near the source. For longer runs, consider a model that extends signals over Category cable, and confirm support for your required resolution, HDR format, audio, HDCP, and EDID management.

An HDMI signal booster should support the resolution and refresh rate required by the system, such as 1080p, 4K at 60 Hz with 4:4:4 chroma, or 8K at 60 Hz, depending on the source and displays. For expanded format support, look for HDR10, HLG, or Dolby Vision, along with multichannel audio formats such as PCM, Dolby formats, DTS, and up to 7.1-channel audio.

HDMI signal boosters may use HDMI cabling for local connections, or Category 5e, Category 6, or Category 6A cable when extending signals through HDBaseT or similar technology. Distance limits vary by format and device, with the listed solutions supporting 4K signals from about 40 to 50 meters, while some HDBaseT configurations support up to 100 meters for 4K video or up to 70 meters for 1080p.

HDMI signal boosters with EDID management help the source and connected displays negotiate supported video resolutions, refresh rates, color formats, and audio capabilities, while HDCP support helps pass protected content between compliant devices. For systems with newer and older displays, some distribution amplifiers provide output downscaling, fixed link-rate settings, or EDID blending, while extenders may offer automatic EDID and equalization adjustments to support mixed equipment.