Model Name TURBO LEOPARD Model No. UH-314C Item Digest 4 Ports USB3.0 PCI-E Host Card PCI Express 3.0 standard USB 3.0 throughput rates up to 5Gbps Supports simultaneous operation of multiple USB devices. Each USB port supplies maximum + 5V / 900mA. HotSwap feature allows you to connect/disconnect devices without powering down the system. Description The Welland USB3.0 host controller card series, with 10 times faster throughput than USB 2.0 and backwards compatible with current USB device, it is the most convenient solution for adding USB3.0 host ports to your computer. The UP-314C is a 4 ports SuperSpeed USB3.0 PCI Express host card and it is compliant with the PCI Express 3.0 specification for host PC system. It works with USB 3.0 compliant peripherals, while maintaining compatibility with existing USB peripheral devices. With USB Hot-Swapping and Plug-n-Play function, you don't have to worry about running out of slots on your motherboard or complicated hardware installation process. SuperSpeed USB3.0 PCI Express card supports USB3.0 devices and backwards compatible with USB2.0 High-Speed and USB1.1 Full-Speed device. It is an ideal choice for external storage devices, external writer, digital cameras, webcam and other USB devices. Specifications PC Interface PCI Express 3.0 Ports 4 external USB3.0 Transfer Rate USB3.0 up to 5Gbps (backwards compatible with USB1.1/2.0) Power Input 4 Pin power USB Power Output +5V / 900mA (each port) Bracket Form Standard 121mm OS Support Windows XP / Server 2008 R2 / Vista / 7 / 8 Dimension 120 x 70 x 20m m (L x W X H)