Raspberry Pi CM4 Computing Module: Quad-Core Cortex A72 for Industrial Embedded Use

The Raspberry Pi Compute Module 4 brings the full processing capability of the Raspberry Pi 4 to a compact form factor designed for deeply embedded applications. Whether you are integrating computing into custom industrial machinery, network appliances, or digital signage, this module delivers robust performance with a quad-core ARM Cortex-A72 64-bit processor. It offers extensive interface options including dual video output, Gigabit Ethernet, and PCIe expansion, making it a flexible building block for professional hardware projects. The module is available in multiple RAM and eMMC flash configurations, allowing you to choose the specifications that match your project's data and performance needs.

Key Hardware Specifications

This computing module is built around a powerful processor and provides multiple memory and storage options to suit different applications. All variants share the same core architecture, with the choice of RAM and eMMC capacity depending on your requirements.

Processor and Performance

The CPU is a BCM2711 quad-core Cortex-A72 64-bit processor, offering more robust performance than previous CM generations. This enables handling of complex computations, multitasking, and data-intensive tasks within embedded systems.

Memory and Storage Options

RAM options include 1GB, 2GB, 4GB, or 8GB, providing flexibility for projects that require large data compilation or memory-intensive applications. The eMMC flash memory achieves transfer rates up to 100 MB/s, which is four times faster than the CM3+ module, speeding up boot times and data access.

Connectivity and Networking

Onboard Gigabit Ethernet with IEEE 1588 support is suitable for network application development requiring precise time synchronisation. Wireless module options use the same WiFi and Bluetooth modules as the Raspberry Pi 4B, with an onboard PCB antenna and provision for an external antenna, making the module more suitable for industrial wireless applications.

Expansion and Integration

This module is designed for seamless integration into custom carrier boards. The board-to-board connector replaces the gold-finger design of earlier CM series, enhancing stability and reliability in production environments.

PCIe Expansion

A PCIe port is included to allow flexible addition of related modules such as NVMe storage, AI accelerators, or other peripherals, expanding the module's capabilities beyond its built-in interfaces.

Dual Video Output

The module supports dual video output, enabling applications that require multiple displays, such as digital signage, kiosks, or dual-screen industrial interfaces.

Practical Applications and Buying Value

The Compute Module 4 is tailored for professionals developing embedded systems that demand reliability, performance, and customisation. Its compact size and extensive I/O make it ideal for integration into closed products.

Industrial and Commercial Use

With its robust processor, fast eMMC storage, and stable board-to-board connector, the CM4 is well-suited for industrial control systems, network gateways, and automated equipment that require dependable computing in a compact footprint.

Network Applications

Onboard Gigabit Ethernet with IEEE 1588 support makes this module particularly appropriate for networking devices such as routers, switches, or time-sensitive applications in telecommunications.

Why Choose This Module

The combination of a powerful quad-core processor, multiple RAM and eMMC options, wireless connectivity, and PCIe expansion provides a flexible foundation for custom hardware designs. The upgrade in eMMC speed and the improved connector design offer practical benefits over earlier CM generations without requiring a larger physical footprint.