Description: This bay allows you to convert an 3.5" floppy drive space into USB ports( 2x usb 2.0+2x usb 3.0 ), meet different needs Super-Speed USB 3.0 supports data transfer speeds up to 5 Gpb/s. Backward compatible with USB 2.0 / 1.1. Compatible with WinXP/2003/VISTA/2008/Windows 7/WIN8 32/64BIT/MAC Plug in USB 3.0 connector on PC motherboard, extends the USB 3.0 from main board to a idle CD-ROM space. Extend interface, add new front ports, Hot-swapping, Plug and play. Easy to install, no external power needed. Sturdy metal construction endures wear and tear, ensuring long-term use Specification: Usb Front Panel:4Ports-( 2x usb 2.0+2x usb 3.0 ) Material:Metal Size:95x100x25mm USB3.0 cable length:80cm USB2.0 cable length:60cm Color:Black Package Includes: 1PiecexUSB Front Panel 5PiecexScrew 1PiecexEnglish User Manual