Description:This USB expansion card has 7 ports, so you can connect with 7 external devices at the same time.This PCI-E to USB expansion board has a wide compatibility and can support many types of computer OS.This PCI-E to USB expansion card features USB 3.0 to ensure a fast and stable data transmission.This PCI-E to USB adapter is designed with 7 ports and each USB ports can provide a stable 5V 2A power supply.This USB expansion card is designed with capacitors to stabilize the power supply to make the USB expansion card safe to use.Specifications:Interface: USB 3.0.Chip: 720201.Data transmission speed: 400MB/S.Size: 12x7.38x9.8cm.Color: Black.Note:There might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement.Package included:1x USB 3.0 PCI-E card.1x CD Driver.