Carry high-bandwidth HDMI signals across longer in-wall and ceiling pathways without relying on a bulky copper cable. This 15 m hybrid active optical cable supports up to 48 Gbps of HDMI 2.1 bandwidth for 8K video at 60 Hz, 4K at 120 Hz, and 1440p at 240 Hz. Its 4.6 mm outer diameter helps when routing through constrained pathways, while CMP plenum rating supports installation in air-handling spaces. The cable is unidirectional, so the source and display ends must be connected in the marked signal direction. Active optical construction suits fixed point-to-point links between a video source and a distant display, projector, conferencing endpoint or digital-signage screen. Support for DSC 1.2a, HDR10+, Dynamic HDR10 with 12-bit processing, HDCP 2.3, eARC and 7.1-channel surround audio keeps video and audio features available on one HDMI link. StarTech 8K-A-150F-HDMI-CABLE combines long-reach active optical transmission with plenum-rated construction rather than serving as a short patch lead. Gold-plated connectors are rated beyond 10,000 insertions, and aramid reinforcement adds tensile strength for cable pulls. It also supports HDMI 2.0, HDMI 1.4 and HDMI 1.2 equipment where an existing installation requires backward compatibility.