for Raspberry Pi Compute Module 4,Mini Base Board (A) with Standard CM4 Socket and Raspberry Pi 40PIN GPIO Header Onboard Multiple Connectors CSI/DSI/FAN/HDMI/USB/RJ45, etc. - waveshare, HB-BASE Board for CM4-A

• Mini Base Board (A) for all versions of Compute Module 4. It uses a 5V/ 2.5A USB Type C interface for power supply. Compared with version B{Mini Base Board (B)}, version A has fewer functions. Without RTC, FAN controller and battery holder,but A version price is more affordable Standard CM4 socket and color-coded Raspberry Pi 40PIN GPIO header. suitable for Compute Module 4 Lite/eMMC series module Onboard multiple connectors including: CSI/DSI/RTC/FAN/HDMI/USB/RJ45 Gigabit Ethernet/Micro SD Card Slot/M.2 Slot This model only support 5V fan and cannot work with the 12V fan. Please confirm the fan voltage before connecting. The DSI Display Port is connecting the DSI0 interface of the CM4, and doesn't use the DSI1 display interface. The Type C interface can be used for power supply or USB SLAVE interface for burning the image. 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.