Module with built-in 8Mbyte Flash memory chip Mainboard with ESP32-WROOM-32U module Embedded dual-core 32-bit high-speed MCU Use the dipswitch to set the subdivision Motherboard has power anti-reverse connection and spike protection MKS TINYBee is a 3D printer main control board with ESP32 wifi on board, supports Marlin2.0 firmware supports MKS MINI12864V3 and MKSTFT serial screen in addition to the common LCD2004 12864 screen Can update firmware via USB can connect WIFI and web control printing Color: Green Material: copper-clad plate Package Contents: 1 x Main Board 1 x Data Cable 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.