The Waveshare 29616 is the CMX-ADAPTER unit which is an Interface Adapter Board for Raspberry Pi Compute Module series which provides physical protection for frequent plugging and unplugging of CM4 / CM5 Socket.
Part No: CMX-ADAPTER is supplied.
Interface Protection Adapter Board
for Raspberry Pi CM4 / CM5
Onboard Standard CM4 / CM5 Connectors, supports access to the Lite / EMMC series of CM4 / CM5
and connecting to corresponding baseboard or expansion board.

Physical Protection for Frequent Plugging and Unplugging
Prevents damage to the CM4/CM5 socket from frequent physical plugging and unplugging, suitable
for applications that require frequent connections of CM4/CM5
Links for connection to
Compute Module 4 Compute Module 5 Luckfox Core3566 Module
Easy to Install
Link for Connecting the Compute Module 4 to
Compute Module 4 IO Board via CMX-ADAPTER
Link connecting the Luckfox Core3566 Module to
Touch screen expansion board via CMX-ADAPTER
Interface Introduction
Outline dimensions