1. For CM4-NANO-A expansion board, it is convenient to learn and evaluate for the computing module or directly integrate it into the product. It is a suitable base plate for Compute Module4 Lite/EMMC 2. The onboard standard CM4 connector integrates a of peripheral interfaces, suitable for narrow application environments 3. More rich interfaces, equipped with interface/Micro-SD/USB2.0/40Pin GPIO and other interfaces are more convenient to use 4. Suitable for CM4 applications or other industrial occasions 5. Ready to use, easy to operate and easy to use Specification: Product name: CM4 mini expansion board CM4 deck: for all versions of Compute Module 4 Connector: for 40PIN GPIO interface x 1 USB: USB2.0 Type A interface x 1 Camera: MIPI -2 interface x 1 (15pin 1.0 mm FPC connector) Storage: Onboard Micro-sd card slot (for versions without eMMC) Power input: 5V colour: blue Material: PCB+metal Size: 55x40mm Package Contents: 1 x Expansion board 1 x pin header Only the above package content, other products are not included. Note: Light 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.