Compute Module IO Board with PoE Feature - For CM3 - PiShop.us
I/O BOARD Raspberry Pi | Development Boards, Kits, Programmers | DigiKey
Getting started with Raspberry Pi: Raspberry Pi Compute Module 4
Amazon.com: Waveshare Compute Module 4 IO Board Pack with RPi Zero V1.3 Camera Cable 15 CM (No WiFi) Compatible with Raspberry Pi Compute Module 4 : Electronics
Mini Base Board/Mini-Computer Full Version, Designed for Raspberry Pi Compute Module 4, USB HDMI Adapter Optional | CM4-IO-BASE-B
Raspberry Pi Compute Module 4 IO Board : ID 4787 : $35.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Raspberry Pi® RPI CM4 IO BOARD I/O module Compatible with (development kits): Raspberry Pi | Conrad.com