... GPS Modules GSM/GPRS DUAL-BAND(900/1800MHZ): MC37IGSM/GPRS TRI-BAND(900/1800/1900MHZ): MC55IQUAD BAND GSM/GPRS/EDGE MODULE ... , SIM300DZQUAD BAND:SIM340Z, SIM340CZ, SIM340DZ, SIM345GSM/GPRS/GPS MODULES:900/1800/1900:SIM508ZQUAD BAND: SIM548Z, SIM548C,GSM ... HSDPA MODULES:2100:SIM5210850/1900/2100: SIM5212GPS MODULE: LR9548S GSM/GPRS MODULE: QUADBAND: GSM0308GSM/GPRS/EDGE MODULE: QUAD BAND : EDG0108