HDMI 2.1 Special Features: True support for Dynamic HDR, AMD FreeSync, NVIDIA G-SYNC, eARC, Dolby Vision, HD Dolby 7.1, Dolby Atmos, BT.2020, ALLM, VRR, HFR, QMS, QFT, DSC 1.2 a Compatible with HDCP 2.3 to watch content protected videos. (NOTE: For 8K performance, all connected cables, devices, HDMI ports must support HDMI 2.1 functions, and the length of connected cables must not exceed 2m) | Video Resolution up to 8K: Supports 8K@60Hz and 4K@120Hz, provides resolutions up to 7680x4320 60Hz, backward compatible with 6K@60Hz, 5K@60Hz, 4K@144Hz, 2K@240Hz, 1080P@60Hz, etc. Supports 3D effects, bringing you a cinematic immersive visual experience | Suitable for Narrow Spaces: 90-degree or 270-degree hdmi adapter can be selected to change the interface direction according to actual needs. It limits the over-bending of HDMI cables, avoids the risk of cable breakage or cable damage, and reduces the stress on ports of valuable devices caused by cable bending. After changing the direction, it can save more space and avoid the cable bending and friction against the wall and contaminating the wall | Excellent Material: The interface of the HDMI right-angle adapter is gold-plated on an iron surface, providing a transmission speed of 48Gbps. Internally soldered PCB board provides stable signal transmission and improves the visual experience. The outer 45P PVC plastic shell is rigid and protects the tight inner structure from damage. The product interface is a standard HDMI interface, which can be used for all devices with standard HDMI | Packaging and After-sale Service: 1×90 degree HDMI adapter and 1×270 degree HDMI adapter. We provide 24-hour customer service and 18 months warranty. You can get a full refund or replacement for free if there is a quality problem