When the cable is not long enough, you can extend the use distance of the Type-C interface. This Thunderbolt 4 extension cable enables you to connect laptops with a USB-C port (DisplayPort Alternate Mode for video supported) 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 display. 40Gbps data transfer rate: 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, delivering high-quality visual performance. Compatible with Thunderbolt 3/2, USB4, USB-C 3.2, and USB-C 3.1 standards and devices. 100W rapid charging: This USB4 extension cable supports up to 100W 5A power delivery, capable of fully charging a MacBook within 2 hours. Upgraded coaxial cable design: The inner wire uses an upgraded coaxial construction, offering improved flexibility and strong interference resistance. Includes friendly customer service and an 18-month worry-free warranty.