Features: CM4 to 4B adapter board for Raspberry Pi and alternative solution for Raspberry Pi 4B. Standard CM4 connector on board supports access to the CM4Lite/eMMC series motherboards, with more powerful performance. On-board RJ45 gigabit-ethernet port, 10/100/1000M adaptive, PoE-pin support access to the expansion board with PoE-function. Easily compatible the interfaces for Raspberry Pi 4B board. On-board 4-channel USB3.0 port, compatible USB2.0 /USB1.1 transmission. Specifications: Material: ABS+Printed Circuit Board Size: about 86x56mm/3.38x2.20inch DSI-interface: DSI1 Note: When CM4 in normal use, it need to provide 5V 2A power supply for CM4, otherwise problems such as automatic shutdown and frequency reduction may occur. Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitor resolution. Package includes: 1Pc Expansion Board