Features:100% brand new and high qualityHigh quality plastic material, which is durable.USB 2.0 Expansion Board for Compute Module 4.Onboard Multiple Connectors Including CSI/DSI/RTC/FAN/HDMI/USB/Gigabit Ethernet Interface .Standard CM4 Socket And Color-Coded Raspberry Pi 40PIN GPIO Header,RS485 RS232 power supply suitable for Compute Module 4 Lite/EMMC series module.Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End Products,Powerful functions.Package Includes:1PC x for Raspberry Pi CM4 Expansion BoardSpecifications:Material: PlasticSize: approx. 124.5x102.8mm/4.90x4.04innote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you