Features: Control the operation of 3/4 stepper motors at most. With 12-channel programmable input interface, which can be configured with limit and emergency stop functions. With 10-channel programmable output interface, it can be configured with controlled peripherals such as water cooling and fog cooling. With1 channel of standard hand pulse MPG interface. PWM output control of principal axis, support MACH3 software, USB interface, support MACH3 software. DCDC electrical isolation, Optocoupler isolation Maximum 200K stepper motor control pulse output, suitable for most machine tool systems. The exclusive design can be used to modify the FRO,SRO and SJR parameters of the exo encoder. Application: automation equipment, processing mold, advertising, art planar carving, relief carving, etc. Specification: Type: USB MACH3 Motion Card Type(Optional): 3 axis, 4axis Size: 13.8*8.1*2.8cm/5.4*3.2*1.1in Weight: 354g/12.5oz Package includes: 1* NVUM CNC Controller 1* Cable