Features: This mainboard only supports firmware files in bin format. After purchase, the firmware needs to be recompiled and exported as a bin file. The burning tool must be powered byMKS burning tool board separately, and using only the USB port for power supply will not light up and work. DIY writing machines can be compiled usingCNC firmware. The MKS DLC32 mainboard set is an offline engraving control board developed specifically for desktop engraving machines. The hardware is equipped with a 32bit high-speedESP32 module, which integrates WIFI function and directly drives a 2.4/3.5inch touch color screen; It can achieve functions such as fast carving, webpage control, andmobile app control. The installation holes and circuit board size of MKS DLC32 are compatible withMKS DLCand can also be used with GRB engraving and Light Burn PC software. Specifications: Material: Plastic Model: DLC32 V2.1 For： Engraving Machine 32Bit Mainboard Kit Features:Offline Wifi Controller Package Includes: 1 Set DLC32 V2.1 Mainboard with Case 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.