The Microsoft Surface Thunderbolt 4 Dock Model 2049 is a brand new, sealed docking station designed for Microsoft laptops. It is compatible with the Microsoft Surface Pro 8, Surface Laptop 4, and Surface Go 3. The dock features Thunderbolt 4, USB 3.0, and USB-C ports, along with passive cooling and a built-in USB port for added convenience. With a rigid plastic construction and a one-year manufacturer warranty, this dock is a reliable accessory for expanding the connectivity options of your Microsoft Surface device.