The CalDigit Thunderbolt 3 Mini Dock is a bus-powered dock that lets you connect your Thunderbolt 3 equipped Mac to two HDMI-enabled TVs or displays up to 4K at 60Hz. It also provides connection to a Gigabit Ethernet network, a USB-A 3.0* device—such as your flash drive, camera, or SD card reader—and a USB 2.0* keyboard/mouse. The mini dock's compact design makes it perfect for travel, so you can instantly connect dual 4K displays and essential accessories no matter where you are.