Mini Base Board (A) Designed For Raspberry Pi Compute Module 4 | CM4 -IO-BASE-A
Amazon.com: Mini Base Board for Raspberry Pi Compute Module 4 Lite/EMMC Series Module, with Standard CM4 Socket and Color-Coded Raspberry Pi 40PIN GPIO Header, for Evaluating CM4 or Integrated into End Product :
Piunora - Open Source Carrier Board for Raspberry Pi CM4
A list of Raspberry Pi Compute Module carrier boards and devices – after hours coding
The Ultimate Raspberry Pi Compute Module Carrier - JFrog Connect
MirkoPC -> CM4 carrier board | Hackaday.io
Minimal RPi CM4 Carrier Board by dronecz | Raspberry Pi PCIe Devices
Piunora Raspberry Pi CM4 Carrier Board | Makerfabs
Raspberry Pad 5 - 5-inch IPS Capacitive Touch Screen for CM4 and Kits
Raspberry Pi Compute Module 4 review: A building block for new devices | ZDNET