This 8K HDMI 2.1 version cable is an Ultra-High Speed HDMI cable series designed purposedly to support high-resolution video modes of 8K @ 60Hz and backward compatible with resolutions such as 4K @ 50/60/100/120Hz. It comes with new features such as eARC, Dynamic HDR10, eARC, ALLM, QFT, QMS, VRR, Dolby Vision, BT.2020. CONNECTION: This is an HDMI Male to Male LENGTH: The cable length 6'7"(2m). NB 2m ha been tested as the maximum length possible to give you 8K @ 60Hz with speed of 48Gbps. If you see length beyond 2m, please ask them to give you a performance report document otherwise you are getting a run for your money. SPEED/BANDWIDTH: 48Gbps COMPATIBILITY: This 8K HDMI version: 2.1 is backward compatible with previous HDMI versions OLD & NEW FEATURES SUPPORTED: -Dynamic HDR, Auto Low Latency Mode (ALLM), Enhanced Audio Return Channel (eARC), Quick Frame Transport (QFT), HDR10, Dolby Vision, Quick Media Switching (QMS), Ethernet, Variable Refresh Rate (VRR), ARC, Dolby TrueHD, CEC, DTS-HD Master Audio, DTS:X, HDCP 2.2 & 2.3 DEVICE SUPPORT: This HDMI Cable product supports Apple TV, Nintendo Switch, Fire TV, Roku, Xbox, Playstation, PS4 Pro, PS4, PS5, Google Stadia, Pro, Blu-ray player, Projector, Truely support HD Dolby 7.1 and DTS-HD Master Audio.