STARTECH.COM 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Power

• Adds four USB 3.0 ports in total; 3x External, 1x Internal
• Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.95
  specifications, with transfer rates up to 5 Gbps
• Built-in SATA power connector for high-powered USB devices, suitable for systems with limited
  or no LP4 power supply connections
• Provides up to 900mA per USB port
• Backward compatible with USB 2.0 and USB 1.0/1.1 devices
• Compliant with PCI Express 2.0 specifications
• Includes a Low Profile/half-height installation bracket

The PEXUSB3S4 4-Port PCI Express SuperSpeed USB 3.0 Card (with SATA Power) adds 3 external USB 3.0 ports and an internal USB 3.0 port to any PCI Express-enabled computer system. With SuperSpeed USB 3.0, you can reach data transfer speeds up to 5 Gbps, while still being backward compatible with existing USB 2.0 devices at 480Mbps.

With a built-in SATA power connector, each USB port can provide up to 900mA of power to USB 3.0 devices (500mA for USB 2.0) by connecting to your computer power supply. Compatible with both Low profile/half-height or Full profile computer cases.