Streamline your workspace with Thunderbolt™ technology designed to enable desktop-level performance on a mobile computer. One dock—one cable. With 85 watts of power delivery, a true, single-cable multi-device connection makes the Thunderbolt 3 Express Dock HD the all-in-one docking solution. Connect dual 4K displays [DisplayPort™ and Thunderbolt 3 (USB-C)] for the ultimate monitor experience. 40Gbps data transfer rates allows enough speed to support all connected peripherals, while Power Delivery capabilities provide enough power to your laptop to eliminate the need for an extra power supply. Need to simplify your workspace with Thunderbolt™ 2 technology for your Thunderbolt 2 device? The Thunderbolt 2 Express Dock HD connects to 8 separate devices, supports dual displays and 4K resolution, and transfers files at up to 20Gbps.