M65 / M66 Quad-Band GSM/GPRS Breakout Board — 3.4V to 4.4V.

Product details The M65 / M66 Quad-Band GSM/GPRS Breakout Board enables reliable cellular communication in a wide range of embedded and automation applications. It supports quad-band GSM frequencies (850 / 900 / 1800 / 1900 MHz), ensuring compatibility with most global GSM networks. This breakout module features UART serial communication, a SIM card slot, and an antenna connector for easy integration into microcontroller-based systems. The board operates efficiently within a 3.4V–4.4V DC input range, providing stable power for consistent performance. It supports GPRS multi-slot class 12 for efficient data transfer, SMS for text communication, and AT command control for flexible configuration. The module is suitable for IoT devices, GPS tracking, automation, and telemetry systems requiring cellular connectivity.