Raspberry Pi CM4 IoT Router Carrier Board Mini with Case and PiTray mini

Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini kit delivers a compact yet powerful networking platform built around the Compute Module 4 ecosystem. Designed for high‑performance routing and edge networking tasks, this compact carrier board enables dual‑gigabit connectivity through a native interface and a PCIe network card, delivering higher throughput and lower CPU overhead than typical USB Ethernet solutions. With a footprint of only 55×62 mm, the embedded networking platform still retains GPIO expansion and USB connectivity, allowing seamless integration with sensors, peripherals, and storage devices for advanced gateway, router, and IoT applications.

Note: This kit includes Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini, Metal Cooling Case with Heat Sink and PiTray mini for Raspberry Pi Compute Module 4.

Figure: Connect Diagram

Dual Gigabit Networking via Native PCIe

This compact networking carrier board enables two full‑speed gigabit Ethernet ports when paired with a PCI Express NIC. Compared with USB‑based network adapters, the PCIe architecture provides improved data throughput, reduced processor overhead, and greater long‑term stability for continuous network workloads. Such architecture makes the platform suitable for firewall appliances, IoT gateways, and embedded router deployments where reliable high‑bandwidth networking and efficient resource utilization are essential.

Compact Design with Flexible Expansion

A 55×62 mm board size enables integration into space‑constrained embedded systems while still retaining essential expansion interfaces. The design includes a 26‑pin GPIO header compatible with Raspberry Pi pin definitions, enabling connections with actuators, sensors, or cooling accessories. An additional USB 2.0 interface supports peripherals such as mobile hard drives, printers, Wi‑Fi modules, or LTE communication modules, creating a versatile platform for customized network and IoT hardware solutions.

OpenWRT and Multi‑OS Support

Built for embedded networking development, the CM4 router expansion board supports OpenWRT for rapid deployment as a fully functional router platform. Compatibility with Raspberry Pi OS, Ubuntu Server, and other Raspberry Pi software environments provides flexibility for developers building customized networking firmware, edge computing applications, or data processing services. Rich ecosystem support and extensive community resources simplify software development and system customization.

High‑Performance Edge Computing Platform

Powered by the BCM2711 quad‑core 1.5 GHz Cortex‑A72 processor available on Compute Module 4, the networking carrier solution provides sufficient computing performance for demanding edge workloads. Combined with dual Ethernet capability and GPIO expansion, the embedded router board can operate as a smart gateway, mini NAS server, wireless network bridge, or LTE internet terminal. Such versatility enables developers to build compact yet powerful networking infrastructure for smart homes, labs, and industrial IoT deployments.

Figure: Dimension

This CM4 networking carrier kit serves as a flexible foundation for building smart routers, firewall appliances, IoT gateways, and compact edge servers. The combination of dual‑gigabit connectivity, GPIO expandability, and multi‑OS compatibility enables engineers, makers, and embedded developers to rapidly prototype reliable networking systems or deploy custom infrastructure nodes across smart home, lab, and industrial environments.