Updates MCU to STM32F407VET6 Faster speed and more resources to support more powerful functions. Compatible with U disk and TF card printing, U disk is more convenient to use than TF card. Supports Virtural USB Device function Connect the computer with a USB cable, you can read and write on the computer as if the motherboard is a USB disk. Supports many types of LCD MKS TS35/MKS H43/LCD12864/LCD2004. Reserve serial port Using other serial devices, such as MKS H43 serial screen, will not conflict with other devices. Motherboard model: MKS Nano V3.1 MCU: STM32F407VET6 (168MHz) FLASH/RAM: 512KB Flash/ 192KB RAM color:Black Material:PCB Package Contents: 1 x Motherboard 1 x Touch Screen 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.