Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano Supports SMS, GPRS, DTMF, HTTP, FTP, MMS, email, etc.
Supports data transferring through UART interface, for connecting host control boards like Arduino/STM32
Onboard voltage level translator, 3.3V by default, switch to 5V via jumper 2x LEDs for indicating the module operating status
SIM card slot for 1.8V /3V SIM card
Autobauding baudrate: 1200bps ~115200bps Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands)
Supports SIM application toolkit: GSM 11.14 Release 99 Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)