产品描述: (L × W × H): 30 mm × 30 mm ×2.35 mm Weight: about 5 gOperatingBands(ME909u-521)LTE: FDD Band 1, 2, 3, 5, 7, 8, 20, all bands with diversityWCDMA/HSDPA/HSUPA/HSPA+: Band 1, 2, 5, 8, all bands withdiversityGSM/GPRS/EDGE: 850/900/1800/1900 MHzGPS/GLONASS: L1OperatingTemperatureNormal operating temperature: –20°C to +70°CExtended operating temperature[1]: –30°C to +75°CStorageTemperature–40°C to +85°CMoisture RH5% to RH95%Power Voltage DC 3.3 V–4.2 V (typical value is 3.8 V)AT Commands For ME909u-521, see the HUAWEI ME909u-521 LTE LGAModule AT Command Interface Specification.