Raspberry Pi
Raspberry Pi Compute Module 4 IO Board
· MPN: SC0326
The Compute Module 4 IO Board is a companion board for Raspberry Pi Compute Module 4. It is designed for use both as a development system for Compute Module ...
The Compute Module 4 IO Board is a companion board for Raspberry Pi Compute Module 4. It is designed for use both as a development system for Compute Module 4 and as an embedded board integrated into end products.
The IO board is designed to allow you to create systems quickly using off-the-shelf parts such as HATs and PCIe cards, which might include NVMe, SATA, networking, or USB. The major user connectors are located along one side to make enclosures simple.
Compute Module 4 IO Board also provides an excellent way to prototype systems using the Compute Module 4.
SPECIFICATION
- 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
- Production lifetime: The Raspberry Pi Compute Module 4 IO Board will remain in production until at least January 2028
DOCUMENTS
Compliance: Full list of local and regional product approvals
Jargon buster
Plain-language definitions for the technical terms used above.
- eMMC
- Embedded MultiMediaCard is built-in flash storage soldered onto a board, similar in purpose to an SD card but integrated. It matters because it holds the operating system and files without needing a separate memory card.
- HDMI
- HDMI is a common digital video and audio connection used by computers, media players, and many displays. If a display kit has HDMI input, it is usually much easier to test with a single-board computer because it can act like a normal monitor.
- MIPI
- MIPI is a high-speed display and camera interface often used inside phones, tablets, and embedded devices. It matters because raw MIPI displays usually need special driver hardware or software support, unlike plug-and-play HDMI screens.
- NVMe
- A high-speed storage standard commonly used by modern SSDs. NVMe support matters if you want faster storage for large AI models, video files or operating system images than a typical microSD card can provide.
- PoE
- Power over Ethernet lets one Ethernet cable carry both network data and electrical power. This is useful when installing a device where running a separate power adaptor would be difficult.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RTC
- A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
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