Certified Reliability - The Plugable Active 2M (6.6ft) Thunderbolt 4 and USB4 cable is Thunderbolt certified to ensure 100W 20V/5A Power Delivery, 40Gbps data transfer speeds, and support for two 4K screens or one 8K screen Compatibility - As a Certified Active Thunderbolt 4 cable built with an Intel chipset, its also fully compatible with Thunderbolt 3, USB4, USB C, USB 3.x/2.x/1.x. And at 2M long, thats one heck of a versatile Thunderbolt cable Display and Resolution Support - See the whole picture with support for dual 4K screens at 60Hz, or one 8K screen at 30Hz when paired with an appropriate hub or docking station. Its worth noting M1 Macbooks only support a single external display Certified, and Scrutinized - This cable was designed and built to Plugables highest standards and rigorously tested in a variety of environments and scenarios. It should work in just about any USB C port you can find