StarTech.com 4-Port PCI Express SuperSpeed USB 3.0 Controller Card with UASP - USB 3.0 Expansion Card with SATA Power (PEXUSB3S4V)

VERSATILE FUNCTIONALITY: The SuperSpeed USB 3.0 PCI express card adds 4 external USB 3.0 ports with support for data rates up to 5 Gbps, while remaining backward compatible with USB 2.0 / 1.x devices. ENHANCED WITH UASP SUPPORT: This 4-port USB 3.0 PCI express card uses UASP technology - UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously. STACKED PORT LAYOUT: The USB 3.0 controller card places the ports one on top of the other, enabling all four USB 3.0 ports to be external facing, while fitting into a low-profile computer system. ADDED POWER CAPABILITIES: With a built-in SATA power connector, each USB port in this USB 3.0 expansion card can provide up to 900mA of power to devices (500mA for USB 2.0). THE STARTECH.COM ADVANTAGE: StarTech.com offers a 2-year warranty and free lifetime technical support on this USB 3.0 PCIe card and has been the choice of IT businesses for over 30 years.