Description: Compliant with PCI-Express specification version 2.0 Product master IC: VLI800 4 ports USB3.0 interface can be connected simultaneously using 4 USB devices USB3.0 interface transfer rate can reach 5Gbps, while backward compatible with USB2.0 / 1.1 USB3.0 interface with a large four pin interface power supply Support USB hot swap, plug and play Compatible with WindowXP / VISTA / 7/ Specification: Type: 4 port USB3.0 PCI-E expansion card Model: PVUS3-4P Interface: Express card Size: 120x 70x19mm/4.72x2.75x0.75inch Interface: 4 Port USB3.0 Support system: Windows2000 / XP / Vista / 7 Package Includes: 1Piece 4 ports USB3.0 PCI-E express card 1Piece User Manual(English) Note: This product is a desktop with 4 port USB 3.0 expansion card, you need a motherboard with PCI-E expansion slot
