[ Package & Assurance ]: HDMI 2.1 Cable 4FT + English User Manual + Assurance Card. We offer 18-months Breakage assurance for all product in case of defective product. Please feel free to contact us if you have any question, friendly and prompt customer service will be offered within 24 hours. [ Universal Compatibility ]: The HDMI 2.1 Cable is compatible for your Streaming Devices, PlayStation 5 (PS5), Xbox Series X, Apple TV 4K, 2021 Macbook Pro 14/16(Apple M1 Pro/Max), NVIDIA SHIELD TV, Fire TV, Roku Ultra TV, Blu-ray players, Microsoft Xbox 1, Nintendo Switch, and other HDMI-enabled devices to your HD TV, monitors, displays or projectors. [ High quality & Durable ]: It's uses unique high-grade grey style, with a new smart chip and high-quality 30AWG copper core, making it reach an unprecedented height. The strength of the aluminum alloy shell and the tail's anti-bending design has been upgraded to make it more durable. The plug part is still made of 24K gold-plated material, which accurately transmits signals. [ Upgrade Revolution - HDMI 2.1 ] : The HDMI 2.1 Cable uses the most cutting-edge technology, refresh rate up to 8K@60Hz, 4K@120Hz. Transmission speed up to 48Gbps ultra high speed, HDCP 2.2&2.3, Dynamic HDR. Support the latest High-Bitrate Audio Formats including DTS Master, DTS:X, Atoms, and Enhanced Audio Return Channel(eARC). [ 8K@60Hz 48Gbps HDMI Cable ]: Stouchi 8K HDMI Cable conforms to the standard HDMI 2.1 version. Compared with HDMI 2.0, its transmission speed has a qualitative leap, from 18Gbps to 48Gbps, there will no longer be stuck or dropped frames when watching video from now on. It is also backward compatible with HDMI 2.0b/2.0a/1.4/1.3/1.2/1.1 versions.