It is convenient to learn and evaluate the computing module or directly integrate it into the product. It supports all versions of CM4. The onboard 40PIN GPIO interface and standard CM4 connector support access to Compute Module 4 Lite/eMMC series motherboards. It is more convenient to use with multiple interfaces such as ETH/////-SD/USB/M.2 B KEY. With a battery interface and the ability to wake up Compute Module 4. Suitable for applications or other industrial occasions that require multifunctional peripherals. CM4 socket: applicable to all versions of Compute Module 4 networking: Dual Gigabit Ethernet RJ45 interface M.2B KEY, support access to 5G/4G modules Nano-SIM card slot, can access standard Nano-SIM card for 5G/4G/3G/2G Internet access USB: USB 3.2 Gen1 port x 2 Connector: 40PIN GPIO interface Display: MIPI interface (15pin 1.0mm FPC connector) Camera: MIPICSI-2 interface x 2 (15pin 1.0mm FPC connector) Video: interface x 2, support 4K30fps output Real-time clock: with battery interface and the ability to wake up Compute Module 4 Storage: Onboard -SD card slot (for version without eMMC) Fan interface: adjustable speed, speed measurement, 5V/12V (default 12V) Power input: 5V/2.5A Dimensions: 99.6x87.0mm Material: PCB Color: Blue Plug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on Voltage: AC100-240V Package Contents: 1 x Expansion Board 1 x Shell Kit 1 x Screwdriver 1 Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.