Dual Thunderbolt 3 (20Gbps) ports and a single USB-C (5Gbps) port.Specific uses: Business,Multimedia,Personal Enterprise-class 7200RPM Ultrastar drive inside Daisy chaining for up to 5 additional devices Powerful performance with up to 200MB/s read and 200MB/s write (1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.) 5-Year limited warranty Ready to go with Mac (HFS+). Works with Windows via reformat.