Raspberry Pi Compute Module 4 CM4 Carrier Board with BCM2711 Processor and eMMC Flash

The Raspberry Pi Compute Module 4 delivers the performance of a Raspberry Pi 4 in a compact, embeddable format, making it suitable for deeply embedded applications where space and reliability matter. It features a BCM2711 quad-core Cortex A72 64-bit processor, dual video output, and multiple interfaces, with flexible RAM, eMMC flash, and wireless module options. This carrier board bottom plate provides a stable platform for integrating the CM4 into custom hardware projects.

Features and Construction

This module is built for robust performance and stability in industrial and network-focused environments. Key upgrades from previous generations include a faster processor, improved storage, and a more reliable connector design.

Processor and Performance

The BCM2711 quad-core Cortex A72 64-bit processor offers significant processing headroom for tasks such as data compilation, digital signage content rendering, and edge computing. Memory options range from 1GB to 8GB RAM, enabling handling of larger datasets without slowdown.

Storage and Speed

eMMC flash memory achieves transfer rates up to 100 MB/s, which is four times faster than the CM3+. This speed boost reduces load times and improves responsiveness when accessing stored data or running applications directly from flash.

Connectivity and Expansion

The module includes onboard Gigabit Ethernet with IEEE 1588 support for precise network timing, ideal for industrial control and automation. A PCIe port allows addition of compatible modules such as Wi-Fi cards or NVMe storage, providing flexible expansion options.

Uses and Placement

This computing module is designed for embedded systems that require the power of a Pi 4 in a smaller footprint. Its board-to-board connector and wireless options make it versatile for professional and home projects.

Industrial and Commercial Applications

With the wireless module option using the same WiFi and Bluetooth as Pi4B, plus onboard PCB and external antennas, the CM4 suits industrial environments where reliable connectivity is needed. The B-to-B connector enhances stability over gold-finger designs, reducing connection issues in vibration-prone settings.

Everyday Home Use

For hobbyists and makers, this module can power custom media centres, network-attached storage, or home automation controllers. The compact size and multiple RAM/storage configurations allow tailoring to specific project needs without excess bulk.

Benefits and Buying Value

The CM4 offers long-term value through its combination of processing power, fast storage, and reliable connectivity. It is a practical choice for applications requiring consistent performance over time.

Maintenance and Longevity

The board-to-board connector design improves physical stability, potentially reducing wear compared to previous gold-finger connectors. The onboard Gigabit Ethernet and PCIe port reduce the need for external adapters, simplifying setup and maintenance.

Why Choose This Product

Compared to earlier CM3+ models, the CM4 offers notably faster eMMC transfer speeds (up to 100 MB/s) and a wider RAM selection (1-8GB). The inclusion of wireless module options and PCIe expansion makes it adaptable to evolving project requirements, providing flexibility without redesigning the carrier board.