Bullet Train HDMI 2.1 cables are advanced active optical cables designed for mission-critical audio/video environments requiring stability and high performance. These cables deliver data at speeds up to 48 Gbps and support high frame rates of up to 120 fps, with low latency and up to 20% less delay than passive copper HDMI cables. Certified by the Imaging Science Foundation (ISF) and CMP/Plenum rated, they support resolutions up to 10K and technologies including FRL, VRR, Ethernet, HDR, Dolby Vision, and 7.1 Dolby Audio including Atmos. The cable includes Cleerline SSF fiber optic strands capable of over 100 Gbps for future-proofed use, requires HDMI port power or supplemental USB power, and is rated for in-wall installation with extensive certification for safety and environmental standards.