THIN AND FLEXIBLE HDMI 2.1 - Designed for long distance, we made our cables flexible and thin but still be able to hold its strength like a traditional HDMI. WIDE COMPATIBILITY - An active HDMI cable connects any device with an HDMI terminal. Backward compatible with HDMI 2.0 and HDMI 1.4. Backward compatible with 4K@60Hz and 1080P. SUPERIOR SOUND QUALITY: HDMI 2.1 cable features Enhanced Audio Return Channel (eARC) for simplified connectivity and support for the most advanced audio formats. UNIVERSALLY COMPATIBLE: Can be used with all HDMI devices and even older HDMI standards; Connect to your HDTVs, laptops, cable and more. Ultra-High Speed Fiber Optic : Made from premium glass fiber you will get Ultra High Speed bandwidth @48Gbps, you can get the best performance on Xbox/PS5 or from your PC/Desktop UTRA HIGH RESOLUTION - There is no signal loss and compression, even for 8K signal transmission. Supports 8K Ultra HD resolution, 8K@60Hz, 4K@120Hz