The OFFICIAL Microsoft 1661 Surface Dock is a black docking station specifically designed for Microsoft Surface Series 3,4,5,6,7,8. It features passive cooling and comes with power to ensure compatibility with various models in the Microsoft Surface lineup. With ports for Ethernet and USB 3.0, this dock provides convenient connectivity options for expanding the capabilities of your Microsoft Surface device. Perfect for enhancing productivity and connectivity, this Microsoft Surface Dock is a reliable and high-quality accessory for your computing needs.