Fit for DIY desktop engraver,dispensing machines printer,plotter. MINI USB interfaces, 12V power supply, delivery lines! Send software. Dual Y axis interface, can drive 2A 4 phase 2 wire stepper motor. Large MOS tube,onboard DC buck module, jumper ADJ can adjust manually the voltage to control the power. Interface: USB Power Requirement: higher than12V 2A Support Stepper Motor:Motor within 2A 2-phase 4-wire Input Voltage:12V(the voltage will affect the effect) Power Interface: DC5.5 - 2.1(Inside is positive electrodes;and is negative electrodes) Note: There is' Voltage Regulator Module in this board. The motor can not work hight than 2A,when the motor work for a long time in 1A to 2A , please pay attention to heat. Colour: blue Material: plastic Package Contents: 1 * Control Panel Board 1 * line Only the above package content, other products are not included. Note: Light 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.