Features: CM4 SOCKET:Suitable for variants of Compute Module 4; It is prohibited to plug in any device except USB and HDMI-compatible when it is live, especially to install or remove the camera when it is live; Do not short circuit the power supply. The USB TYPE C interface can be used for power supply or USB SLAVE interface burning. When the CM4 is in normal use, it need to provide 5V 2A power supply for the CM4. Otherwise, problems such as automatic shutdown and frequency reduction may occur. Standard CM4 Socket, With Multiple Peripheral Interfaces; Specifications: Material:PCB Size:Approx.55x40mm/2.17x1.57in CM4 Socket:Suitable for all variants of Compute Module 4; Connector:Raspberry Pi40PIN GPIO header 1 USB:USB 2.0 Type A port 1 Display:MIPI port 1 (15pin 1.0mm FPC connector) Camera:IMX219-D160 (8MP, 160FOV) Video:Mini HDMI-compatible port 1, supports 4K30fps output Storage:TF card socket for Compute Module 4 (without eMMC) variants Power Input:5V Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Raspberry Pie CM4 Expansion Board