Description 1、3D PRINTER CONTROL BOARD: With onboard ESP32 wifi, supports for Marlin 2.0 firmware. In addition to supporting regular LCD2004 and 12864 screens, also supports MKS MINI12864 V3 and MKS TFT serial port screens. 2、USB UPDATE FIRMWARE: The motherboard can update firmware through USB and connect to the network and web pages through WIFI function to control the 3D printer. 3、32 BIT MCU: The motherboard uses ESP32 WROOM 32U module, which embeds a dual core 32 bit high speed MCU with a clock up to 240MHz. And integrated WIFI module, the performance is very powerful. 4、8M FLASH MEMORY: The module has a built in 8M byte flash memory chip, which provides effective protection for more application scenarios. 5、A4988 DRIVER: Comes with 5 pcs A4988 micro stepper motor drivers, which are built in converter, easy to operate, can operate bipolar stepper motors in full step, half step, 1/4, 1/8, 1/16 step modes, with output drive capabilities up to 35V and 2A.