ESHOWEE 4-Port SuperSpeed USB 3.0 PCI-E PCI Express Card with 15-pin SATA Power Connector for Desktops

System Requirements: PC with 512MB of RAM and 1.0GHz or faster processor. One (1) available PCI Express 1.x/4.x/16.x slot Windows XP/Server 2003/Vista/Server 2008/Windows7 or later2 Note: To achieve the maximum throughput, the PCI-Express slot must be version 2.0 or higher. Performance per port may decrease if multiple ports are transferring data simultaneously due to limited throughput of the PCI-Express slot. To meet USB 3.0 transfer speed, high 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 a "Power Surge on Hub Port" message error and no 5V bus power in USB ports. The file NEC(RENESAS)U3-201-202 of the CD is for PCI Express Card. Specifications: Item size: 12 * 8.1 cm Item weight: 49g Package size: 15 * 13 * 3cm Package weight: 102g Package list: 1 * PCI Express Card 1 * Software Drivers CD 1 * User Manual 2 * Scrwes