And at 2M long, that's 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. It's worth noting M1 Macbooks only support a single external display Certified, and Scrutinized - This cable was designed and built to Plugable's highest standards and rigorously tested in a variety of environments and scenarios. And because it's certified Thunderbolt 4, it can be used as a Thunderbolt 3 cable in your Thunderbolt 3 dock-and that's true for USB-C and USB4, too. Thunderbolt 4 or USB4, which is it? Both. And a little more. This cable is Thunderbolt 4 certified, and that comes with some incredible benefits. USB-C, USB4, Thunderbolt 3, or Thunderbolt 4, it doesn't matter, The Plugable Active 2M USB4 and Thunderbolt 4 cable will work. Even at 2 meters, you won't see a decrease in performance. Often overlooked, the cables connecting our computers to their peripherals have an important part to play. That's why our and TBT4-40G2M cables are Thunderbolt certified-it's the only way to ensure you're getting complete compatibility and reliability. You have a powerful laptop. You have a high-definition monitor. Don't sacrifice your resolution to cheap Thunderbolt cables. Plugable's 2M Active Thunderbolt 4 and USB 4 cables deliver 33 million picture-perfect pixels, either split between two 4K monitors @60Hz, or all on one 8K screen @30Hz.