Feature 1. USB--USB 2.0 x 2, USB 2.0 x 2 (via FFC connector) 2. HEADER--40PIN GPIO x 1, M. 2 slot x 1. 3. HDMI--HDMI x 1, HDMI x 1 (via FFC connector), supports 4K 30fps output 4. DSI DISPLAY--MIPI DSI display port x 1(15pin 1.0 mm FPC connector) 5. CSI CAMERA--MIPI CSI-2 camera port x 2(15pin 1.0 mm FPC connector) 6. POWER INPUT--5V 7. FAN--5V, allows speed adjustment and measurement 8. ETHERNET--Gigabit Ethernet RJ45 9. CM4 SOCKET--suitable for all variants of Compute Module 4 10.

SD CARD SLOT--MicroSD card socket for Compute Module 4 Lite (without eMMC) variants 11. RTC---Real-time clock with battery socket and ability to wake Compute Module 4
Note 1: This model only supports a 5V fan and cannot work with the 12V fan. Please confirm the fan voltage before connecting.
2: The DSI Display Port is connecting the DSI0 interface of the CM4, and doesn't use the DSI1 display interface.
3: The Type C interface can be used for the power supply or USB SLAVE interface for burning the image.
4: 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.
5: It needs to use a 5V 2A power supply for CM4. Otherwise, problems such as automatic shutdown, frequency reduction, etc. may occur.
6: 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.
7: The module doesn't have any protection circuit, please do not short-circuit the power supply.
8: USB 2.0 is closed by default, if you need to open it, you need to add dtoverlay=dwc2, dr_mode=host in config. txt. 9. HDMI1 uses a flat cable output, if you need to use it, you can purchase an HDMI adapter. 10. This expansion board does not support the POE function. Package Content CM4-IO-BASE-B x1 Screws x1
Note: Technical Service is provided. Please contact us via message.