Features: It supports Marlin2.0 firmware. In addition to support ordinary LCD2004 and 12864 screens, It also support MKS MINI 12684 V3 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 dual-core 32-bit high speed MCU with 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 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: Motherboard Size: approx11x8.4cm/4.33x3.31in Display Size：approx 10.6x4.7cm/4.17x1.85in Material：PCB-board Module-：ESP32-Wroom-32U（8M Flash） Flash Memory: 8M MCU: Dual-Core 32 Bit Chipset : ESP32-D0WD-V3 Insert Type: Positive insertion Package Includes: 1Setx MKS TinyBee v3 Motherboard note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you