The Microsoft Docking Station 1661 is a black unit designed for Microsoft Surface Pro 3, 4, and 5, as well as the Surface Book Pro 3 and 4 tablets. It features a built-in USB port, anti-slip design, and AC-powered functionality. Made of rigid plastic, this docking station is compatible with 13-inch laptops and offers a convenient solution for expanding the connectivity options of your Microsoft Surface device. With only 4 available, this exclusive unit is a valuable addition to any tech-savvy user's collection.