Overview
The SIM7600A-H 4G HAT is a 4G communication and GNSS positioning module, which supports LTE CAT4 up to 150Mbps for downlink data transfer. it is pretty low power consumption.
You can connect this 4G module with computer to surf the Internet, or attach it onto Raspberry Pi to enable functions like 4G high speed connection, wireless communication, making telephone call, sending SMS, global positioning, etc.
Features
Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+
Supports dial-up, telephone call, SMS, MMS, mail, TCP, UDP, DTMF, HTTP, FTP, etc.
Supports GPS, BeiDou, Glonass, LBS base station positioning
Onboard USB interface, to test AT Commands, get GPS positioning data, and so on.
Onboard CP2102 USB to UART converter, for serial debugging
Breakout UART control pins, to connect with host boards like Arduino/STM32
SIM card slot, supports 1.8V/3V SIM card
Onboard audio jack and audio decoder for making telephone call
2x LED indicators, easy to monitor the working status
Onboard voltage translator, operating voltage can be configured to 3.3V or 5V via jumper
Baudrate: 300bps ~ 4Mbps (default: 115200bps)
Autobauding baudrate: 9600bps ~ 115200bps
Control via AT commands (3GPP TS 27.007, 27.005, and V.25TER command set)
Supports SIM application toolkit: SAT Class 3, USAT
Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
Other Specifications

Power supply: 5V
Operating voltage: 5V/3.3V (configured via jumper)
Operating temperature: -30°C ~ 80°C
Storage temperature: -45°C ~ 90°C
Dimension: 56.21mm x 65.15mm