Raspberry Pi Compute Module 4 IO Board


The CM4IO board breaks out every interface from CM4. It provides a development platform and reference base-board, reducing time to market for CM4-based designs.

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If the product is in stock: shipment within 1-2 weekdays.

In stock

SKU: 2142 Category:



  • CM4 socket: suitable for all variants of Compute Module 4
  • Standard Raspberry Pi HAT connectors with PoE support
  • Standard PCIe Gen 2 x1 socket
  • Real-time clock (RTC) with battery backup
  • Dual HDMI connectors
  • Dual MIPI camera connectors
  • Dual MIPI display connectors
  • Gigabit Ethernet socket supporting PoE HAT
  • On-board USB 2.0 hub with 2 USB 2.0 connectors
  • SD card socket for Compute Module 4 variants without eMMC
  • Support for programming eMMC variants of Compute Module 4
  • PWM fan controller with tachometer feedback
  • Input power: 12V input, +5V input with reduced functionality (power supply not supplied)
  • Dimensions: 160 mm × 90 mm


Raspberry Pi Compute Module 4 IO Board product brief

Raspberry Pi Compute Module 4 IO Board datasheet

Raspberry Pi Compute Module 4 IO Board KiCAD files

The CM4 IO Board KiCad design files require features that are not present in the current stable release of KiCad. Please install the latest nightly build. Nightly builds for your operating system are available from the KiCAD Downloads page.


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