Features:1. With speicial power chip, support 12V power input2. The circuit board is optimized by circuit, effectively solve the heating problem3. Can work with E/Z/Y/X axis motor4. With USB interface, easy to operate5. For CR-10 3D PrinterSpecifications:Voltage: 12VNumber of motors: 4Package Included:1x Creality 3D® 3D Printer Mainboard  Reference picture: ,,,,,,,,