STW PCI-E to USB 3.0 2-Port PCI Express Card Mini PCI-E USB 3.0 Hub Controller Adapter with Internal USB 3.0 19-Pin Connector and 5V 4 Pin Male Power Dual Port Connector ( Item#: C4255 )

With quick and easy installation, the STW USB 3.0 PCIe 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 smart NEC chip, high performance.
High speed USB 3.0 supports transfer rates up to 5 Gbps, compatible with original USB system, peripherals and cables, backward compatible with USB 2.0 /1.1.
Superior quality solid capacitance, 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 / 2A current for external devices' power supply, big 4Pin power interface can also supply power for devices, ensuring sufficient power supply.
Works greatly for Windows 7 / 2000, for XISTA, for Windows XP.
Compatible with computer motherboard interfaces with PCL-E slot, includes PCI-E 1X, PCI-E 4X, PCI-E 8X, PCI-E 16X.

Specification:
Model number: STW-3002
Material: Metal
Color: Black
Bus Mode: PCI-E * 1
Power Interface: Big 4Pin
Transfer Rate: USB3.0 5Gb/s
USB Interface: 2 External USB3.0 Port + 19Pin Header(2 Internal USB3.0 Port)
Compatible slot: PCI-E 1X, PCI-E 4X, PCI-E 8X, PCIE 16X
Operating system: for Windows 7 / 2000, for XISTA, for Windows XP
Item weight: Approx. 59g / 2.08oz
Package size: 15 * 9.5 * 2cm / 5.91 * 3.74 * 0.79in(L * W * H)
Package weight: 84g / 3oz

Package list:
1 * USB 3.0 2 Port PCI-E Card
1 * Screw
1 * Installation CD

Note: The package list without user manual.