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. Bus-powered mode and no external power required for most of peripherals. 4-pin power connector available for some high current consumption peripherals, like HDD. Brand new Support Windows XP / Vista /Win7/8/10 Server 2008 or later Device Type: 4 Port USB 3.0 HUB PCI-E Adapter colour: blue Material: ABS Size: 7x5x3cm Package Contents: 1 x expansion card Only the above package content, other products are not included. Note: Light reflection 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 +/- 1-3cm.