Bus Type: PCI Express (x1),Speed: SuperSpeed (5Gbps), High Speed (480Mbps), Full Speed (12Mbps) and Low Speed (1.5Mbps),Compliant with USB 3.0 Rev. 1.0 specification,Compliant with PCIe 2.0 Specification,Each USB port supplies +5VDC/900mA,Supports USB 3.0, USB 2.0, and USB 1.1 devices,Connectors: USB 3.0 Type A Female (3 x External, 1 x Internal) and 15 Way SATA Power,Chipset: TI,All ports are silicon fused,Software Compatibility: Windows 7 (32/64bit), Vista, XP, Linux 2.6.32,Includes standard and low profile brackets,2 Year warranty,