[Main control chip] PI V1.2 motherboard adopts ALLWINNER H616,64-bit -core, -A53@1.5GHz Processor ,RAM is 1GB DDR3L SDRAM. [About Size] PI V1.2 Control Board size is 85x56mm,the same as the 3B/4B, Making it a seamless fit for your existing projects. [Support Display and Motherboard] PI V1.2 Display Adopts MaliG32 MP2 GPU,Support OpenGL3.2 and HDMI2.0A UHD 4K Video & Audio output and SPI screen ,onboard 4xUSB2.0 port.Powerful High Performance details and clarity. motherboard suppport SKR MINI E3 V3.0 ,SKR Pico ,SKR V1.4 turbo ,Octopus pro/Octopus series.then running Klipper firmware. [Rich Connectivity]Onboard Standard 40-pinGPIO header,3.5mm Audio Jack,TF card Slot,ADXL345 SPI,USB To CAN Module(need to purchase module),Built-in IR Receiver.RJ45 port support a 100Mbps wired network .built-in 2.4G Wifi module ,supports 100Mbps wireless network, Users can connect the inlculde wifi antenna to get a stronger and more stable Wifi signa. Colour:black Material:plastic Package Contents: 1 x Development Board 1 x Motherboard 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.