The Compute Module 4 IoT Router Carrier Board Mini is an expansion board for the internet that is based on the Raspberry Pi Compute Module 4. By connecting a gigabit network card via PCle, it provides two full-speed gigabit network ports for the Raspberry Pi CM4, resulting in better performance, lower CPU usage, and higher stability during long-term work compared to using a USB network card. Despite its small size of 55 x 62mm, this board still features the GPIO pin header of the Raspberry Pi, allowing it to connect with other actuators, sensors, and smart cooling fans. Additionally, it includes a USB2.0 interface that can connect with mobile hard drives, printers, WIFI modules, LTF modules, and more.
The Compute Module 4 IoT Router Carrier Board Mini now supports the OpenWRT open-source router system, making it easy to set up and use as a router. It is also compatible with Raspberry OS, Ubuntu Server, and other Raspberry Pi systems.
Thanks to the powerful performance of the BCM2711 4 core 1.5GHz Cortex-A72 and the extensive software support from the Raspberry Pi community, this board is an excellent foundation for creating high-performance gateways, smart routers, and home IoT platforms. It can also be used as a mini-NAS, wireless network bridge, or LTE Internet terminal when connected to peripherals.
It’s important to handle the board-socket of the CM4 with care, as it’s fragile. Please align the direction correctly before pressing it down, and avoid repeatedly plugging and unplugging the CM4 module. Always double-check the CM4 installation direction before powering up.
Specifications
Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini:

Compatible Module: Raspberry Pi Compute Module 4 series
Ethernet:
ETH1: Compute Module 4 Built-In
ETH2: PCI Express 1000BASE-T NIC

USB:
1x USB-C: Power only
1x USB-C: USB 2.0 High Speed

Storage Card: microSD slot (Only modules without eMMC supported)
GPIO: 26Pin GPIO compatible with Raspberry Pi
Power Supply: USB-C 5V/3A
Operating Temperature: 0~80C
Dimension: 55x62mm/2.17×2.44

Acrylic Case with Heatsink

Size: 78x72x35mm (3.1×2.8×1.4in)

Shell Material: Acrylic

Heatsink Material: Aluminum

Compatibility: Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini

Note: The CM4 Compute Module is not included.
Package Contents

Compute Module 4 IoT Router Carrier Board Minix1

Acrylic Case with Heatsinkx1

Resources

Product wiki

Dimension Figure

V1.0 model (include case)

FAQs:
Q: Which Raspberry Pi models is the IoT Router Carrier Board compatible with?
A: It is specifically designed for the Raspberry Pi Compute Module 4.
Q: What networking capabilities does the IoT Router Carrier Board offer?
A: It features dual gigabit Ethernet ports for high-speed network connectivity.
Q: What other interfaces are available on the board?
A: Besides Ethernet, the board includes a GPIO header for connecting sensors or other devices, and a USB 2.0 port.
Q: Does the IoT Router Carrier Board come with a case?
A: Yes, it comes with an acrylic case for protecting the board and components.
Q: Can the IoT Router Carrier Board be used for routing purposes?
A: While it’s not a full-fledged router, the board can be configured as a router using software like OpenWrt or pfSense due to its dual Ethernet ports.
Connect Diagram

Dimension