The Option GT Max 3.6 Express is the most advanced PCI Express wireless network card built on the global standard for wireless. It offers you the latest technology so that you can supercharge your laptop no matter where you go! You can quickly access email, the Internet, and business applications. AT&T's LaptopConnect cards are interoperable on our 3G BroadbandConnect and EDGE networks giving you the ideal mix of performance and coverage. Option's GT MAX 3.6 Express is the most compact way to connect new-generation laptops to the global wireless Internet. As an ExpressCard, it fits into the narrow expansion slots. FEATURES 1)Performance and Coverage - Interoperable on AT&T's 3G BroadbandConnect and EDGE networks HSDPA Category 6 (3.6 Mbps downlink / 384Kbps uplink) EDGE Class 12 (216Kbps downlink / 216 Kbps uplink) 2)Global Compatibility with Wireless-GSM UMTS/HSDPA (850/1900/2100 MHz) GPRS/EDGE (850/900/1800/1900 MHz) 3)Advanced Receiver Technology for enhanced 3G performance with an additional antenna which improves reception 4)Simple Setup - Get up and running in less than 15 minutes 5)Supports Microsoft Vista,Microsoft Windows XP, Microsoft Windows 2000 Specifications: Suitable Network :GPRS CSD,EDGE,UMTS,HSDPA Max Transmitting Rate :3.6 Mbps, 7.2Mbps ready Applied Frequency Range: UMTS/HSDPA 850/1900/2100MHz, GPRS/EDGE 850/900/1800/1900 MHz Interface: Express Operating System:Windows98/ME/2000/XP/Microsoft Vista