The Horizontal Dock features a solid metal chassis and compact footprint. A high-precision, four-point positioning system effortlessly aligns the computer during docking, for a smooth switch to a desktop workstation. With the touch of a button, the electronic docking and undocking process takes under two seconds. The Horizontal Dock for the MacBook Pro with Retina Display can connect three external displays Thunderbolt 2, Mini DisplayPort, and HDMI. Finally, it also has USB 3.0 peripherals, two audio devices, an Ethernet connection, an SD Card, Kensington Lock, and power.