54mm Express Card Expresscard to 2 Port USB 3.0 Adapter for Laptop NEC Chip Features: Express Card Expresscard 54mm to USB 3.0x2 Port Adapter Stable and reliable NEC chipset Support Express card 54mm slot Support USB 1.1 / 2.0 / 3.0 Support USB 3.0 Specifications, Transfer rate support 1.5/12/480/5000 Mbps 2 X USB 3.0 specifications ports Support older USB series specifications (Compatible USB 1.1 / 2.0) With USB bus power for external AC power supply Support Windows 2000/XP/2003/Vista/Win 7 of 32 / 64 bit server Item size: approx.73x54x5mm Package Included: 1 x 54mm Express Card Adapter 1 x Driver CD Note: This card should be recognized by the supported OS. Driver will be installed automatically. If you want to install it manually, please look for NEC/Renesas uPD720202 driver in the driver CD. All the cards will be tested before ship out. If you have trouble install the card, it means there might be compatibility issues. Please contact me