The Belkin Thunderbolt 3 Dock Core with Thunderbolt 3 Cable F4U1100 in black is a versatile docking station designed for 13-inch and 16-inch laptops. It features various ports including Thunderbolt 3, Audio Out, DisplayPort, HDMI, Ethernet, USB 3.0, and USB 2.0, making it compatible with a range of devices. The dock is made of aluminum, has passive cooling, and includes built-in USB ports for added convenience. It is compatible with the MacBook Air 13" M1 and MacBook Pro 13" M1 models, providing a sleek and efficient solution for expanding your laptop's capabilities.The dock is in excellent condition, looks brand new.