A 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 and USB 1.1 specifications. Compliant with single-lane (x1) PCI Express throughput up to 5 Gbps. Supports 2.5 Gbps PCI Express bus with full-duplex channel. Features 4 USB 3.0 Type-A female ports. Plug-and-play and hot-swappable. Includes integrated power module; no external power required for most peripherals. Specifications: Device Type: 4-Port USB 3.0 Hub PCI Express Adapter Interface Type: USB 3.0 Data Transfer Rate: 5.0 Gbps Dimensions: Approx. 12.00 x 6.60 x 1.90 cm (4.72 x 2.60 x 0.75 in) Operating System Support: Windows XP, Vista, 7, 8, 10, Server 2008 or later Color: Black Material: PCB + metal Package Contents: 1 x 4-Port USB 3.0 Hub PCI Express Adapter