The main board adopts ESP32-WROOM-32U module, embedded dual-core 32-bit high-speed MCU, the clock is up to 240MHz. And integrated WIFI, Bluetooth module, the performance is powerful. In addition, the module has a built-in 8M- Flash memory chip, which provides effective protection for more application scenarios. Support ordinary LCD2004, 12864. Support MKS MINI12864 V3 reserved serial port 2. Support MKS TFT series serial screen. Type: 3D printer motherboard MCU: ESP32 MCU frequency: 240MHz Flash: 8192K RAM: 520Kb color:Black :PCB Package Contents: 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.