| GPIO Header | Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano |
| Network Features | Supports dial-up, telephone call, SMS, TCP, UDP, DTMF, HTTP, FTP, etc. |
| Positioning Systems | Supports GPS, BeiDou, Glonass, GALILEO, QZSS, and LBS base station positioning |
| USB Interface | Onboard USB for AT command testing, GPS data reading, etc. |
| UART Debugging | Onboard CP2102 USB to UART converter for serial debugging |
| Breakout Pins | UART control pin breakout to interface with Arduino/STM32 |
| SIM Card Support | SIM card slot supports 1.8V/3V SIM cards |
| TF Card Slot | For data storage such as files and messages |
| Audio Interface | Onboard audio jack and audio decoder for telephone call functionality |
| Status Indicators | 2× LED indicators to monitor operating status |
| Voltage Translator | Configurable operating voltage: 3.3V or 5V via jumper |
| Baudrate | 300bps ~ 4Mbps (default: 115200bps); autobauding: 9600bps ~ 115200bps |
| AT Command Support | 3GPP TS 27.007, 27.005, and V.25TER command sets |
| SIM Application Toolkit | SAT Class 3, GSM 11.14 Release 99, USAT |
| Development Resources | Includes manual and examples for Raspberry Pi, Jetson Nano, Arduino, STM32 |