Quectel EC21-A mPCIe is a compact and versatile wireless module designed for M2M and IoT applications. It supports an extensive range of wireless bands and network standards, making it suitable for global deployment. The module supports LTE Cat 1, Cat 3, and Cat 4 technologies, ensuring reliable and high-speed connectivity. Its key features include an embedded GNSS receiver, low power consumption, secure firmware update, compact form factor, and a rich set of interfaces. With support for multiple bands and network standards, the Quectel EC21-A mPCIe is a reliable and flexible choice for various IoT applications.