The new Surface Dock transforms your Surface into a desktop PC. It offers a complement of USB-C, USB-A, audio, and Ethernet ports, its more than just a simple port replicator and brings with it smart, enterprise-grade controls. Such as individually disabling USB data, audio, or Ethernet on the Surface Dock with certificate-based management. It also has the capability of driving two 4K displays at 60Hz or two 5K at 30Hz.