SuperSpeed 2-Port USB 3.0 PCI-E PCI Express 19-pin USB3.0 15-pin SATA Connector Low Profile

Features:Extend with 2 USB 3.0 downstream ports and 1 USB3.0 19-pin Connector(can expand another two USB 3.0 ports) for standard desktop PC.Fully compliant with one-lane (x1) PCI Express 2.0 specification.TWO external 5Gbps SuperSpeed USB 3.0 ports.One 19-pin internal 5Gbps SuperSpeed USB 3.0 port.Built-in with 15-pin SATA Power Connector for added power source to better support power hungry bus-powered devices.SuperSpeed USB 3.0 offers 10 times performance increase over Hi-Speed USB 2.0.USB 3.0 complies for Intel eXtensible Host Controller Interface (xHCI).Up to 5Gbps maximum transfer rate.SuperSpeed USB 3.0 is backwards compatible with USB 1.0/1.1/2.0 devices (data transfer rate at 1.5/12/480Mbps).Supports PCI Low profile.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.System Requirements:PC with 512MB of RAM and 1.0GHz or faster processor.1 available PCI Express 1.x or 2.x slot.System Support: for Windows XP / Vista / Windows7 (32/64 bit)/Windows8 (32/64 bit). 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.Specifications:Certifications: CE, FCC, RoHSItem size: 12 * 8cm / 4.7 * 3.1inItem weight: 48g / 1.7ozPackage size: 15 * 13 * 3cm / 5.9 * 5.1 * 1.2inPackage weight: 89g / 3.14oz