Description: Perfect chip welding, excellent workmanship, can maximize the elimination of interference and improve stability. Each interface is equipped with independent interface protection insurance. In the event of a failure, the power can be turned off instantly to protect the computer from damage. Plug & play and hot swap capability. A SATA power connector is available for some high power consumption devices, such as hard drives. Support system: for Windows XP/Vista/win7/win8/win10. Specification: Type: PCI Express to USB Card Interface: 4 USB 3.0 Ports Data Transfer Rate: 5.0 Gbps Material: Metal + Plastic Size: Approx. 12 x 8 x 6.7 cm / 4.72 x 3.15 x 2.63 inch Package Includes: 1 Piece 4 Port PCI-E to USB 3.0 Hub Adapter Note: The color may be slightly different due to the color calibration of each monitor. Please allow slight measuring deviation due to manual measurement.