52Pi Router Board for Raspberry Pi CM4/CM5, Pi Compute Module 4 Expansion Board Breakout Board Module for Raspberry Pi Compute Module 4 Series

CM4 Router Board is an expansion board based on the Raspberry Pi Compute Module 4. It brings Raspberry Pi CM4 two full-speed gigabit network ports and offers better performance, lower CPU usage, and higher stability for a long time work compared with a USB network card.

The board still retains the characteristic GPIO pin header of Raspberry Pi, which makes it applicable for connecting other hat board such as Pi hats, sensors, and PoE hat board, and cooling fan, etc.

It provides OpenWRT open-source router system. After a simple setup, it can be used as a router. It is also compatible with Raspberry OS, Ubuntu Server and other Raspberry Pi systems, even you can make this router board a retrogame machine at home.

The powerful performance of BCM2711 4 core 1.5GHz Cortex-A72 and the rich software support in the Raspberry Pi community make this board can also be connected to peripherals and used as a mini-NAS, wireless network bridge, or mini server which can be controlled via terminal.

If you need multiple LAN network ports like common routers, it is recommended to use a gigabit switch to expand the network ports, which will not affect its Internet performance.

• Compatible Module: Raspberry Pi Compute Module 4 series

• Support standard Raspberry Pi HAT interface

• Support POE HAT to supply power to the board

• Support POE HAT for external power supply

• Full-speed dual gigabit network interface

• Master-slave dual USB2.0 interface

• Micro SD card slot, used to support non-eMMC version of CM4

• Standard HDIM video output interface

• 0.91 inch IIC OLED display

• 5V DC fan interface(Support controlling via PWM signal)

• Ethernet: high-performance Gigabit ethernet controller RTL8111E chip, JXD 2111x G2406s chip as isolation transformer.

  • Port0: Compute Module 4 Built-In

  • Port1: PCI Express 1000BASE-T NIC

• GPIO: 40Pin GPIO compatible with Raspberry Pi

• Power Supply: USB-C(Type-C) 5V/3A interface

• Operating Temperature: 0℃~80℃

• Dimension: 146 x 80mm

[Specification]:

• Size: 80mm * 145mm (3.14inch *5.70inch)

[52Pi WiKi]:

EP-0146

[Package Includes]:

• 1 x BreadBoard Kit For Raspberry Pi Pico

• 4 x M2.5x11+6 Copper Pillar

• 4 x M2.5 Nuts

[Pin header Details]:

[How to connect network device]:

• Release the screws of pre-installed heatsink.
• Paste thermal pad to CM4 Module on top of CPU and Memory chip.
• Install Compute Module 4 to CM4 Router Board insert the microSD or TF card (eMMC version does not require an SD card)
• Fix the heatsink to CM4 router board.
• Connect the network cable to your network device and power on the router board.
• Port 0 - to LAN network device such as switch.
• Port 1 - to WAN network device as outgoing port.(also you can define it in routerOS such as OpenWRT)