The Compute Module 4 IO Board is a companion board for all variants of Raspberry Pi Compute Module 4(supplied separately). It is designed for use both as a development system for Compute Module 4 and as an embedded board integrated into end products.
The Compute Module 4 IO Board is designed to allow you to create systems quickly using off-theshelf 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.
Connectors: Standard Raspberry Pi HAT connectors with PoE support. Standard PCIe Gen 2 x1 socket. Various jumpers to disable specific features, e.g. wireless connectivity, EEPROM writing.
RTC : Real-time clock with battery socket and ability to wake Compute Module 4 Video: 2 x MIPI DSI display FPC connectors (22-pin 0.5 mm pitch cable) Camera: 2 x MIPI CSI-2 camera FPC connectors (22-pin 0.5 mm pitch cable)
USB: 2 x USB 2.0 connectors. Micro USB socket for updating Compute Module 4. Ethernet: Gigabit Ethernet RJ45 with PoE support.
