Features Anti-interference: The inverter interface (AVI+, AVI-) of MACH3 controller is isolated from the computer and the main control circuit, with strong anti-interference ability External wide voltage input: CNC MACH3 USB motion control card can be connected to an external wide voltage input, 12-24V, with anti-reverse connection function. It can be connected to common anode or common cathode, the input level is 5V, and the stepper motor driver with optocoupler input. Ensure computer safety: All input signals of MACH3 controller are isolated by lamp lotus, which can be connected to emergency stop, tool setting, limit, return to zero, etc., to ensure computer safety 0-10V analog voltage converter: One channel of CNC MACH3 USB motion control card isolates 0-10V analog voltage output through optocoupler. The 0-10V analog voltage converter can control the input voltage to control the spindle speed. Provide PWM output: MACH3 controller provides PWM output (5V level), which can be controlled by the PWM spindle. Provide 4 output ports (5V level), which can be connected to relay module photocoupler, water control, spraying, etc. Features: The frequency converter interface (AVI+, AVI-) is isolated from the computer and the main control circuit, Strong anti-interference ability Support various versions of MACH3 software, support for the latest version. Support for Windows XP, WIN7, WIN8, WIN10, support for 64-bit systems, support for laptops, support for tablets. The external wide voltage input, 12-24V, and anti-reverse function. All the input signal isolation by the light lotus, can be accessed by emergency stop, the knife, limit, back to zero, etc., to ensure computer security. All the way through the optocoupler isolated 0-10V analog voltage output, you can control the input voltage from 0-10V analog voltage converter to control the spindle speed To provide PWM output (5V level), can be controlled by the PWM spindle control. Provide 4 output port (5V level), can be connected with the relay module optocoupler, water control, spray and so on. Can be accessed by a total of yang or common cathode, the input level of 5V, with optocoupler input stepper motor driver. To provide electronic hand wheel interface. Specifications: Type:USB Interface Board Support: for MACH3 software Board Size: 9.8 x 6cm / 3.96 x 2.36in Jog handler size:10*6*2.5cm/3.9*2.4*1in Weight: Approx.229g/8.1oz Package list: 1 x interface board 1 x Jog handler 1 x USB cable 1 x CD 1 x flat cable Package List