Description When the cable is not long enough, you can extend the usage distance of the Type-C interface. This Thunderbolt 4 extension cable allows you to connect laptops with a USB-C port (supporting DP Alternate Mode for video) to external monitors with a USB-C port. An external Thunderbolt 4/3/2 male to male cable is required to connect to your laptop or monitor. 40Gbps Data Transfer Speed: Transfer up to 14 hours of HD video or 25,000 HD photos in one minute at full speed. 8K/6K Ultra HD Video Output: Supports 8K/6K/5K/4K@60Hz video resolution for high-quality visual performance. Compatibility: Works with Thunderbolt 3, Thunderbolt 2, USB4, USB-C 3.2, and USB-C 3.1 devices and standards. 100W Fast Charging: Supports up to 100W 5A power delivery, enabling fast charging for compatible devices such as MacBook. Upgraded Coaxial Design: Features an upgraded coaxial cable construction for improved flexibility and enhanced signal stability with strong interference resistance. Includes friendly customer support and an 18-month worry-free warranty. Contact the seller if you have any questions upon receiving the item.