Features:brand new and high qualityCompliance with pci-express 2.0 specification revisionCompliance with xhci specification version 1.0Compliance with superspeed usb3.0 specification version 1.0Hot swap function for usb supportContact us if you have questions. Specifications:Number of Interfaces: 2USB 3.0 Applicable Slot: Minipci-e Bus Bandwidth: about 6gb /s Product Size: 50mmx30mm Desktop: 0 # -55#, Humidity 85% Storage Temperature: -20#-65c, Humidity 85% Note:This product is limited to a standard mini pci-e slot (cannot be used for msata slot or mini pci-e wireless network card slot, it must be a standard mini pci-e slot)Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes:1 x Mini pci-e to USB3.0 Expansion Card.