With quick and easy installation, the PCIe expansion card is designed to support simultaneous operation of multiple USB 3.0 devices on your standard desktop PC. USB 3.0 boasts high speed transfer rates of up to 5 Gbps, which means you can copy videos, music, photos, data files between USB devices and the computer at blazing fast speeds. It is the best choice for expanding and maximizing the USB 3.0 devices with the latest USB 3.0 data transfer technology!Features:Strictly conform to PCI-E XPRES specification version 2.0 with the latest dual NEC smart chip, high performance.High speed USB 3.0 supports transfer rates up to 5Gbps, compatible with USB system, peripherals and cables, backward compatible with USB 2.0 /1.1.Superior quality welding process, exquisite materials with fine workmanship, security and stability in data transmission.Easy installation, fully plug and play, support hot swapping, convenient and efficient.USB interface can offer +5V / 1.2A current for external devices' supply, 15Pin SATA interface can also supply for devices, ensuring sufficient supply.   Works greatly for Windows 7 / 2000, for VISTA, for Windows XP / 98SE / Me and more.Specification:Product name: PCIe external 5-port USB 3.0 + internal 2-port 19pin USB 3.0Color: RedChipset: NEC VL805 + VL812 supply interface: 15-Pin SATATransfer rate: USB 3.0 5Gbps / 625MbpsHot swap: YesUSB Interface: 5 External USB 3.0 Ports + 19Pin Header(2 Internal USB 3.0 Port)    Operating system: for Windows 7 / 2000 / VISTA / XP / 98SE / Me and moreItem size: 11.9 * 8.4 * 2.2cm / 4.7 * 3.3 * 0.9in(L * W * H)Item weight: Approx. 62g / 2.2ozPackage size: 14 * 10 * 3cm / 5.5 * 3.9 * 1.2in(L * W * H)Package weight: 95g / 3.4ozPackage list:1 * USB 3.0 5-Port PCI-E Card1 * Installation CDNote: The package list without user manual. a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a