Brand OWC (Pre-owned, minor scuffs) Hardware Interface USB 3.0 Compatible Devices USB C, Windows, Thunderbolt, Mac Total USB Ports 7 Number of Ports 12 Features 12 ports of connectivity: (5) USB 3.1 Gen 1 + (2)Thunderbolt 3 + SD Reader + mDP + Gigabit Ethernet + Audio I/O + S/PDIF Designed for user convenience; With a small foot print and both rear and front-facing ports it is easy to connect any device, interface, audio jack, or SD card Connect two 4K displays or one 5K dispay: If your Mac or Windows PC can drive the displays, the OWC Thunderbolt 3 Dock can make the connection! Compatible with Windows PC and Mac; Daisy chain 6 Thunderbolt devices; Charges your connected laptop and smart devices to ensure your batteries are fully charged when you go portable (up to 60W) Includes: OWC Thunderbolt 3 Dock; 0.5 m (18 inches) Thunderbolt 3 cable; External power supply and power cable