Raspberry Pi CM4 IO Board Dual HDMI 2.0, PCIe x1, USB Hub, RTC
Brand: Raspberry PiRaspberry Pi & Accessories
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Prices updated: 13 Oct 2026
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About this product
Reference IO baseboard for the Raspberry Pi Compute Module 4, with dual HDMI 2.0 outputs, a PCIe Gen 2 x1 slot, a USB 2.0 hub, Gigabit Ethernet and a real-time clock. It also provides DSI/CSI connectors and a HAT header for expansion.
Specifications
- Video output
- Dual HDMI 2.0
- PCIe
- PCIe Gen 2 x1
- USB
- USB 2.0 hub
- Ethernet
- Gigabit Ethernet (PoE via HAT)
- Display / camera interfaces
- DSI / CSI
- Real-time clock
- RTC
- Expansion
- HAT header
Frequently asked questions
Does this board work with any Raspberry Pi?
No. It is a baseboard for the Compute Module 4, so it requires a CM4 module mounted on it. It does not accept standalone Raspberry Pi boards.
How is Power over Ethernet supported?
PoE is supported through a PoE HAT fitted to the HAT header, as the listing notes. The baseboard itself does not provide PoE without that add-on.
