Microsoft Surface Thunderbolt 4 Dock - Black. The 165W Power Supply (with up to 96W passthrough) provides the charging power you need for most Surface devices and accessories. Interfaces: Thunderbolt 4 Cable with LED charging indicator/1 x front-facing USB-A 3.1 Gen 2 (7.5W)/1 x front-facing USB-C (USB4 Thunderbolt 4 - video display enabled - 15W)/2 x rear-facing USB-A 3.1 Gen 2 (7.5W)/2 x rear-facing USB-C (USB4 Thunderbolt 4 - video display enabled - 15W)/1 x Ethernet (RJ-45 - 2.5Bbits)/3.5mm in-out audio jack. With high-speed USB4/Thunderbolt 4 ports, Surface Thunderbolt 4 Dock for Business connects to Surface and non-Surface devices and provides the highest speed data and file transfers. Use with USB4/Thunderbolt 4-enabled devices to connect up to two 4K monitors at 60Hz. Limited Hardware Warranty - 1 Year. Designed for Surface devices with USB-C with USB4/Thunderbolt 4 ports: Laptop 5, Pro 9 (WiFi), Pro 8, and Laptop Studio. Also Compatible with Surface devices with USB-C ports: Laptop Go (Gen 1), Laptop Go 2, Laptop 3, Laptop 4, Go 2, Go 3, Pro X, Pro 7+, Pro 9 5G LTE, and Studio 2+. PLEASE NOTE: NOT COMPATIBLE with Duo, Duo 2, Hub, Hub 2S, or Laptop SE devices.