The J-Tech Digital JTECH-FCAB158K 49.2 ft fiber optic HDMI 2.1 cable is designed for long-distance data transmission with no signal loss. Using active optical fiber instead of traditional copper wire as the transmission medium, the JTECH-FCAB158K can transmit 8K@60Hz / 4K@120Hz 4:4:4 HDMI signals with zero delay or latency and further distances when compared to copper HDMI 2.1 cables. The JTECH-FCAB158K fiber HDMI cable does not require external power to operate and provides higher immunity to EMI (electromagnetic interference) vs traditional copper HDMI cabling.