Koutech 2-Port SuperSpeed USB 3.0 PCI Express Controller Card (2xExt) with Regular and Low Profile Brackets and 15-pin SATA power connector

Specifications: -Fully compliant with one-lane (x1) PCI Express 2.0 specifications -Two (2) external 5Gbps SuperSpeed USB 3.0 ports -USB 3.0 complies with Intel eXtensible Host Controller Interface (xHCI) -Up to 5Gbps maximum transfer rate -SuperSpeed USB 3.0 offers 10 times performance increase over Hi-Speed USB 2.0 -SuperSpeed USB 3.0 is backwards compatible with USB 1.0/1.1/2.0 devices (data transfer rate at 1.5/12/480Mbps) -SuperSpeed USB 3.0 is fully compatible with original USB system, peripherals and cables -Built-in with 15-pin SATA power connector for added power source to better support power hungry bus-powered devices -Ideal connection for digital cameras, scanners, printers, external CD/DVD/Blu-Ray writers, hard disk drives, flash memory drives and etc. -Fully Plug-N-Play and Hot Swap compatible -Supports Windows XP/Server 2003/Vista/Server 2008/Windows 7 Electrical Specifications: Power Input: 15-pin SATA power connector System Requirements: -PC with 512MB of RAM and 1.0GHz or faster processor -One (1) available PCI Express slot -Windows XP/Server 2003/Vista/Server 2008/Windows 7 To meet USB 3.0 transfer speed, highest quality USB 3.0 cables and devices are required Supports both 32-bit & 64-bit OSes Make sure the power is well connected, otherwise you will see "Power Surge on Hub Port" message error and no 5V bus power in USB ports. Package Contents: -One (1) PCI Express card -One (1) low-profile bracket -Software drivers CD -User manual