The onboard standard CM4 connector supports access to the Compute Module 4 Lite/eMMC series motherboard On board -SD card slot (for versions without eMMC) M. 2 M KEY, supporting communication module or NVME solid state disk HD interface supports 4K30fps output The product has small volume and interfaces For GPIO interface USB: USB 2.0 Type A interface x one Camera: MIPICSI-2 interface x 1 (15pin 1.0mm FPC connector) Video: HD interface x 1. Support 4K30fps output Type: expansion board Model: CM4 Duino Power input: 5V Purpose: Compute Module 4 expansion board color:Black Material:PCB size:73.58 x 53.34mm Package Contents: 1 x Expansion Board 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.