# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**1 device listed.**

## Raspberry Pi CM4 IO Board

Official reference carrier board for the Raspberry Pi Compute Module 4. Exposes dual HDMI 2.0, Gigabit Ethernet, 2× USB 2.0, PCIe x1, dual camera/display FPC, microSD slot (for CM4 Lite), RTC, HAT headers, and barrel-jack power.

[Details](https://openhardware.directory/devices/raspberry-pi-cm4-io-board) | [Markdown](https://openhardware.directory/devices/raspberry-pi-cm4-io-board/md)