Supply Huawei MG301GSM quad-band module Shu Shu Shu authentic spot directly replace MG323-B Product Features Physical Characteristics Dimensions: 24mm * 24mm * 2.95mm Weight: <3g work GSM4 frequency band support: GSM / GPRS: 850MHZ / 900MHZ / 1800MHZ / 1900MHZ Operating temperature normal operating temperature: -20 ° C ~ + 70 ° C operating temperature limit [1] [2]: -40 ° C ~ + 85 ° C Storage Temperature -40 ° C ~ + 85 ° C Operating Voltage DC 3.3 V ~ 4.2 V (typ. 3.8 V) AT commands, see "HUAWEI MG301 GSM LCC module AT Command Manual" power (3.8v under test) off leakage current: 240 A dormant average current:? <3.0 mA Product Features GPRS class 10 (maximum): I typical = 350 mA application interface (68-pinLCC interface) SIM card interface (3.0 V and 1.8 V) 2-channel analog voice interface UART1 interface (supports 8-wire serial interface) and UART0 interface (supports 2-wire serial interface ) USB Interface Network Interface Status Indicator Power On / Off interface hardware reset interface sleep / wake control interface awaken dormant indication Interface Module Antenna Antenna Interface Host interface pad short message service support new wake up, receive support: read, delete, store state, the list of supported PDU mode GPRS GPRS CLASS 10 encoding CS 1, CS 2, CS 3, CS 4 maximum downlink transmission rate: 85.6 kbit / s maximum uplink transmission rate: 42.8 kbit / s support PBCCH embedded TCP / IP protocol, Support multi-link authentication information Socket CE (European Conformity) CCC (China Compulsory Certification) China Type Approval Certificate RoHS (Restriction of the Use of Certain Hazardous Substances)