4K Ultra High Definition HDMI Cable
Supports all HDMI resolutions up to 4K (3840x2160p at 60Hz)
Universal Compatibility HDMI to HDMI Cord
Ready for UHD TV, Blu-ray Player, Xbox, PS5/PS4/PS3, PC, Apple TV ,X-box One/360, Switch, computers or other HDMI-enabled devices to your 4K/HD TV, monitors, displayers or projectors.
High Quality HDMI to HDMI Cable
Aluminum Alloy Shell,Sturdy Nylon Braided Jacket.Supports Mirror Mode,Extended Mode and Game Mode, supports 21: 9 , 4:4:4 video image formats.
4K HDMI Cables is real 4K(3840x2160p at 60Hz).This had been professionally tested. But the premise is that your input device and output device must support 4k. And you are not using other extension cords.