Express Card Expresscard 54mm to USB 3.0x2 Port Adapter; Support Express card 54 slotSupport USB 1.1 / 2.0 / 3.0; Support USB 3.0 Specifications, Transfer rate up to 5Gbps2 X USB 3.0 specifications ports; Notebook Express Card54 USB3.0 Expansion CardExtend 2 USB3.0 ports on PC with ExpressCard54mm slot;Compliant with USB3.0 interface specificationinterface type expressProduct DescriptionCompliant with revision 1.0 of the USB 3.0 specificationSupport low speed (1.5Mbps) / full speed (12Mbps) / high speed transmission (480Mbps) / super high speed (5Gbps)2 downstream ports supporting various ratesSupports all USB-compliant data transfer types as follows; control/bulk/interrupt/isochronous transferRevision 0.95 of the Intel Compatible Extensible Host Controller Interface (XHCI) SpecificationSupports USB legacy functionsCompliant with Express data transfer rates up to 5GbpsSupports external power sockets to supply connectivity capability compatible with each USB 3.0 port up to 900mASupport Windows 2000/XP/2003/Vista/WIN 7, win8/WIN10Compliant with XHCI Revision 0.95 specificationBackward compatible with USB2.0/1.1 specificationThe data transfer rate of the USB3.0 interface can reach 5GbpsThe data transfer rate of the USB2.0 interface can reach 480MbpsThe USB3.0 interface can provide 900mA of current to power external devicesSupport plug and playWorking temperature: 0 ~ 5 7 , working humidity: 5 % ~ 9 5 % relative humidityOperating voltage: +3.3V~+5.0V, storage temperature: -20~85Colour: silverMaterial: metalSize: 14 x 9 x 2CMPackage Contents:1 x Express Card 54mm to USB3.0 Card1 x USB Cable1 x CD driverOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.