Features: brand new and high quality It supports Marlin2.0 firmware. In addition to support ordinary LCD2004 and 12864 screens, It also support MKS MINI 12684 V3 and MKS TFT serial screens. The motherboard can updete the firmware via USB, and control the 3D printer through the wifi function to connect to the network and web pags The motherboard uses the ESP32-WEOOM-32U module, which embeds a dual-core 32-bit high speed MCU with a clock up to 240Mhz. The hardware is equipped with 32 bit high-speed ESP32 module, integrated WIFI function the performance is very powerful. The module has a built-in 8M byte Flash Memory chip, which provides effective for protection for more application scenarios. Precise positioning and high precision carving. Repeatable circular engraving Specifications: Size: approx15x10cm/5.9x3.94 in Material：PCB-board Module：ESP32-Wroom-32U（8M Flash） Flash Memory: 8M MCU: Dual Core 32 Bit Chipset : ESP32-D0WD-V3 Package Includes: 1 PC x MKS TinyBee Motherboard 1 for M x USB Cable A-C note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.