Features: 1. 100% brand new and super fine quality. 2. Extends 2 USB3.0 ports on your PC using the ExpressCard54mm slot, compatible with the USB3.0 interface specification. 3. Supports low speed (1.5 Mbps) / Full speed (12 Mbps) / High-speed transfer (480 Mbps) / Super high speed (5 Gbps). 4. Supports external power sockets to provide connectivity for each USB 3.0 port up to power. 5. Supports 2000/XP/2003/Vista/WIN 7, Win8/WIN10, compatible with XHCI Revision 0.95 specification, backward compatible with USB2.0/1.1 specification. Specifications: Material: metal Size: As shown (1 inch=2.54 cm) Color: As shown Supports older USB series specifications (compatible USB 1.1 / 2.0). Supports transfer rates of 1.5/12/480 Mbps, 5 Gbps. Features USB power for external AC power. Supports XP, Vista and 7. Package includes: 1 X PCI-E to USB 3.0 Express Card Adapter. Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2. Please forgive 0.1 Cm/0.039"-0.3 Cm/0.118" measuring deviation due to manual measurement.