Description When the cable is not long enough, you can extend the usage distance of the Type-C interface. With this Thunderbolt 4 extension cable, you can connect from your laptops with a USB-C port (DP Alternate Mode for video supported) to your external monitors with a USB-C port. You need to connect an external Thunderbolt 4/3/2 male to male cable for connection to your laptops or monitors. 40Gbps Data Transfer Speed: With this Thunderbolt 4 extension cable, you can copy 14 hours of HD video or 25,000 HD photos in one minute at full speed. 8K/6K Ultra HD Video Output: This Thunderbolt 4 extension cable supports 8K/6K/5K/4K@60Hz video resolution, providing you with extraordinary visual effects. Compatible with Thunderbolt 3/2, USB4, USB-C 3.2, 3.1 standards and devices. 100W Fast Charging: With this USB 4 extension cable, it supports a maximum of 100W 5A power charging, fully charging your MacBook within 2 hours. Upgraded Coaxial Cable: The internal wire uses an upgraded version of coaxial cable, which is softer and has strong anti-interference capabilities. Friendly customer service and an 18-month worry-free warranty if you have any questions about the items upon receipt.