Feature: 1. Applicability: Standard for RPI 40PIN GPIO expansion header, support for RPI series boards. 2. Support: Support dialing, telephone, SMS, TCP, UDP, DTMF, HTTP, FTP, etc. Support GPS, Beidou, Glonass, GALILEO, QZSS, LBS base station positioning. 3. Onboard USB Interface: Test AT commands, obtain GPS positioning data, etc., onboard USB to UART converter for serial debugging. 4. Function: UART control pin, connect to STM32 and other motherboards, onboard SIM card slot, support 1.8V/3V SIM card, TF card slot, used to store files, messages and other data. Onboard audio hole and audio decoder for making calls. There are 2 LED indicators onboard, which is convenient for monitoring the running status. The onboard voltage converter can be configured as 3.3V or 5V by jumper. 5. Support Baud Rate Range: 300bps‑4Mbps (default: 115200bps), support automatic identification baud rate: 9600bps‑115200bps, support AT order control (3GPP TS 27.007, 27.005 and V.25TER order set), support SIM application toolkit: SAT Class 3, GSM 11.14 Release 99, USAT. Specification: Item Type: SIM7600G‑H 4G HAT Module Material: PCB Working Frequency: LTE Cat-4: LTE-FDD：B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66 LTE-TDD：B34/B38/B39/B40/B41 3G: UMTS/HSDPA/HSPA+：B1/B2/B4/B5/B6/B8/B19 2G: GSM/GPRS/EDGE：850/900/1800/1900 MHz Satellite System: GPS/Beidou/GLONASS/GALILEO/QZSS Receiver Type: 16 Channels, C/A Number Sensitivity: -159 dBm (GPS) / -158 dBm (GLONASS) / TBD (Beidou) Cold Start: -148 dBm First Positioning Time (Open Field): Cold Start: <35s, Hot Start: <1s Sms (SMS): Supported Types: MT, MO, CB, Text, PDU Audio Features: Supports Reply Cancellation. Support Noise Suppression Function Supply Voltage: 5V Operating Temperature: -30℃ - 80℃ Storage Temperature: -45℃ - 90℃ Product Size: Approx.56.21 x 65.15mm / 2.1 x 2.6in. Package List: 1 x GPS Antenna2 x Antenna1 x SIM7600G-H 4G HAT(B)1 x LTE Antenna1 x Screw Bag2 x USB Cable Type A Male To Male