Features: Onboards standard CM4 connector supports access to Compute Module 4 motherboards and corresponding backplanes or expansion boards. Physical Protect against multiple unplugging Protects the CM4 from damage caused by unplugging the CM4 connector Protects the CM4 board For RPi developers, electronics enthusiasts, students and other people interested in for RPi CM4 computing module. Can be used for all of project development for RPi CM4 computing module Such as for IoTs devices, home controllers, robots Specifications: for RPi CM4 Computing Module Size：about 5.5x4cm/2.17x1.57in Package Includes: 1PC CM4 Computing Module note: Due to the different light effect, the actual color the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring difference due to manual measurement.