The Sierra Wireless AirCard 875 is the latest wireless PC Card in a long line of high-quality AirCard PC Cards developed by Sierra Wireless. A type II PC Card with a fixed antenna, the AirCard 875 supports theoretical data rates up to 3.6 Mbps on HSDPA networks. The AirCard 875 provides high-speed worldwide roaming with tri-band HSDPA/UMTS and quad-band Class 12 EDGE/GPRS connectivity. Key Features: Wireless data at speeds up to 3.6 Mbps on HSDPA capable networks High performance antenna in rugged housing Simultaneous voice and data capabilities Supports HSDPA and UMTS on the 2100, 1900, 850 Mhz band Supported by Sierra Wireless developer tools for third party user interface and applications Windows XP, 2000 Field firmware upgradeable Specifications: Suitable Network: GPRS CSD, EDGE, UMTS, HSDPA Max Transmitting Rate: 3.6Mbit/s, Applied Frequency Range: UMTS/HDPA850/1900/2100mhz GPRS/EDGE850/900/1800/1900 MHz Interface: PCMCIA TYPE II (AIRCARD 875) or USB(AIRCARD 875U) Operating System: Windows98/2001/XP/Vista