IT-CEO USB Expansion Card 5Gbps PCI-E Express USB 3.0 Card with 4 USB Ports for Desktops V7U3E-4 With 4 USB3.0 ports, provide enough interface for your USB devices, fully meet daily use. Transmission speed up to 5Gbps, is ten times faster than the USB 2.0. Backwards compatible with USB 2.0 and 1.1 devices. USB interface can provide 900mA current to external devices for charging. Compatible for Windows98SE, 2000, Me, XP, VSITA,Win7/8