ST50H Module AcSiP ST50H Module integrates Arm® Cortex®-M4 Microcontroller (MCU) with LoRa modulation and provides ultra-long-range spectrum communication and high interference. This module features an 863MHz to 930MHz frequency range, 7.8KHz to 500KHz bandwidth range, and embedded memories (256KB of Flash and 64KB of RAM). The ST50H module comes in 12mm x 12mm x 1.22mm dimensions and is ideal for low-data rate applications. Typical applications include IoT and smart metering.