Feature: 1. The product based on MEGA 2560, using single board solution, with higher stability. 2. Two heating ends, support two‑color printing, the maximum operating temperature depends on the material of the thermal head. 3. Support hot bed, the maximum current does not exceed 9A, and it is recommended that the temperature be controlled below 100 ℃. 4. 3‑channel temperature sensor (PT100, ‑200‑650 ℃ ), using INA826 special chip, higher accuracy and strong anti‑interference ability. 5. High scalability, one ANALOG IN is reserved, and other idle I/O ports are also reserved for pin headers, which can be expanded by users. 6. 2‑way Safety switch, can be connected to smoke sensor, etc. to prevent safety accidents. 7. 3‑way fan interface, adjustable fan interface (J14, FAN PWM, 24V), 5V fan (J34, FAN 5V), 24V fan (J20, FAN 19‑24V), dimmable LED interface (J15, LED PWM, 24V) Specification: Item Type: MotherboardMaterial: Aluminum substrate Model: ultinaker2 Applicable Models: For Wanhao/Duplicator 6. Package List: 1 x Motherboard1 x Line Note: Description:The Ultimaker 2 motherboard is based on the ATmega 2560+16U2 main chip platform. The board integrates 5 A4988 stepping drive circuits. The interface board integrates an memory card slot + coding navigation keys + LCD display. All technical details are exactly the same as Ultimaker2. Default Ultimaker2Marlin official firmware, support single or double nozzle printing