M.2 interface power supply is limited to 1.5A, if it causes problems such as slowing down of solid state or other equipment, it is recommended to buy version B.
Both USB 3/4 and HDMI1 need to be used, you can use adapter board to connect it out. This expansion board does not support the POE function.
The module does not have any protection, please do not short-circuit the power supply.
When using the M.2 interface, please use the matching screws. Using screws of other lengths may cause the CM4 core to be damaged by the screws.
In order to ensure the normal power supply of CM4, please do not connect other devices when using the Type C interface to burn the image.