Highlights: Convert an unused 5.25" CD-ROM drive space into 2 USB 3.0 Port and 1 HD Audio Port/1 Microphone Port Plug and Play, Don't need the power supply Super-Speed USB 3.0 supports data transfer speeds up to 5 Gb/s (maximum). Backward compatible with USB 2.0 / 1.1. Compatible with Windows XP/Vista/7/8/ 8.1 /10 Sturdy metal construction endures wear and tear, ensuring long-term use