Thunderbolt certified to ensure 100W (20V/5A) power delivery in both directions. The Thunderbolt 4 video cable is designed to deliver a powerful 8K/6K/5K display with a single connection without any sacrifice to resolution. Supports dual 4K displays at 60Hz when using two cables or paired with an appropriate dock. Please note that M1/2-based Mac supports a single external monitor ONLY. Connect your Thunderbolt 3/4 devices for highest performance and enjoy lightning-fast 40Gbps data transfer. PCIe data transfer speed reaches 3000MB/s, upgraded from 16Gbps to 32Gbps. Supports transferring 4GB files, movies, videos, music, pictures in a second. Compatible with Thunderbolt 4/3/USB-C port displays, laptops/tablets/phones, docking stations/hubs, external SSDs, eGPUs, etc. It is also backwards compatible with all Thunderbolt 3 and USB4, USB C, USB 3.2 Gen 2/1, 2.0 devices. You'll get 1x 0.8M/2.6FT Thunderbolt 4 Cable. Comes with 1-Year worry-free warranty and life-long technical support.