Excelity&reg; 2 Ports USB 3.0 Front Panel Floppy Disk Bay 20 Pin Hub Bracket Offers two external USB 3.0 super speed ports,20 Pin Connector & 2ft Adapter Cable Super-Speed USB 3.0 supports data transfer speeds up to 5 Gb/s (maximum). Backward compatible with USB 2.0 / 1.1 Sturdy metal construction endures wear and tear, ensuring long-term use Hot-swapping. Plug and play. Easy to install, no external power needed Compatible with Windows 10/8/7/Vista/XP/MAC