This USB 3.0 product by Delock expands your PC by four USB 3.0 interface. Insert the PCI Express card into a PCI Express slot and install the front panel into a free 3.5 bay of your PC. Thus you can use two USB ports in the front and two USB ports on the backside. Specification ? Front Panel: 2 x USB 3.0 type A with connecting cable ? PCI Express x1: 2 x internal USB 3.0 type A 1 x internal power connector 4 pin 2 x external USB 3.0 type A ? Data transfer rate up to: Super-Speed 5 Gb/s, High-Speed 480 Mb/s, Full-Speed 12 Mb/s, Low-Speed 1.5 Mb/s ? USB 3.0 cable of the front panel will be connected internal to the PCI Express card ? Length of internal USB 3.0 cable: ca. 60 cm System requirements ? Windows XP/XP-64/Vista/Vista-64/7/7-64, Linux ex Kernel 2.6 ? One free PCI Express slot ? One free 3.5 bay ? One free power connector 4 pin molex Package content ? 3.5 Front Panel USB 3.0 with connecting cable ? PCI Express USB 3.0 ? Power cable 4 pin to 4 pin Molex ? Screws ? Driver CD ? User manual Package ? Retail Box