Product Details Fangrui Product Details A Super Fast And High-capacity Data Transfer Solution. Stable And Reliable Via Chipset . Compliant With Usb 3.0 Specification Revision 1.0 . Compatible With Usb 2.0 1.1 Specification. Compliant With Single- (x1) Pci-express Throughput Up To 5gbps. Supports 2.5gbps Pci-e Bus With Full Duplex Channel. 4 Usb 3.0 Type A Female Connectors Available. Plug Play And Hot Swapping Capability. With Power Module And No External Power Required For Most Of Peripherals. Specification: Device Type: 4 Port Usb 3.0 Hub Pci-e Adapter Interface Type: Usb 3.0 Data Transfer Rate: 5.0 Gbps Dimension:. 12.00 X 6.60 X 1.90cm/4.72 Inch X 2.60 Inch X 0.75 Inch(l*w*h) Support Xp / Vista /win7/8/10 Server 2008 Or Later Colour:black Material:pcb+metal Package Contents: 1 * 4 Port Usb 3.0 Hub Pci-e Adapter Only The Above Package Content, Other Products Are Not Included. Note: Light And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3