Use 32-bit high-speed ARM chip and self-developed firmware. With high-speed WiFi module, access to the cloud to achieve remote printing. Support Available to set the stepper driver current on the config file, no worry the mainboard will burn out when adjusting the current. Easy to upgrade the firmware through SD card. Use high quality Mosfet with better cooling effect. Type: 3D printer motherboard Input voltage: 12V~24V Colour: Black Material: PCB Package Contents: 1 x Motherboard 1 x Display 1 x USB Cable 1 x LCD Screen 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.