The new Raspberry Pi Compute Module is here, heralding a new era for the series. The Compute Module 4 features a faster CPU than its predecessor, along with more RAM, storage and the option to add Wi-Fi connectivity. The Compute Module 4 also sports a new design for the Compute Module series and is available from US$25.
https://www.notebookcheck.net/Raspberry-Pi-Compute-Module-4-launches-for-US-25-with-powerful-upgrades-and-a-new-form-factor.498551.0.html