Description: Upgrade your PC with support for the latest in USB technology with a 2-Port SuperSpeed USB 3.0 PCI Express Adapter Controller Card. SuperSpeed USB 3.0 boasts data transfer rates of up to 5Gbps- more than 10X that of its predecessor. With quick and easy installation, you¡¯ll enjoy the lightning fast transfer rates of USB 3.0 devices performing at full speed potential. Features and Specifications: Backwards compatible with USB 2.0 devices Supports simultaneous operation of multiple USB 3.0 and USB 2.0 devices Supports 2 downstream ports for all speeds Supports Windows 7/Vista/XP 32/64-bit, Server 2003-2008 32/64-bit Bus-powered mode and no external power required for most peripherals Molex power required Data Transfer Rate: up to 5Gbps Output: 5V/900mA MAX (each USB port) External Ports: 2x USB 3.0 Internal Ports: 1x 4-Pin Power Connector Host Interface: PCI Express (PCI-E) Chipset: VIA VT800 Package Contain: 1x 2 Port USB 3.0 PCI-E Controller Card 1x Installation CD