... .functions: voice call, SMS, internet 4.band class A 450M EVDO REV. A Chipset: qualcomm MSM6800ABasic performance* Capable of wireless data ... card slotEquipment module type: RUIMTransmission rate EVDO Rev. A: downlink 3.1Mbps, Uplink 1.8MbpsRF band: CDMA 450MHzSystem Requirements:Card Slots: USB ... 10.4, Windows 7 32-bit and 64-bit 450M cdma evdo modem