CNC USB MACH3 100Khz Red Break Out Board Support Stepper Motor Drive Servo Drive Features: 1. Support four-shaft linkage, can connect four stepper motor drive or servo drive 2. The maximum stepping pulse frequency is 100KHz, suitable for servo or stepper motor 3. Support automatic detection tools 4. Support emergency input  5. Support for connecting electronic handwheels 6. An external 24V DC power supply is required to isolate the USB and external port to make the system more stable. 7. With 0-10V output port, you can use mach3 software to control the spindle motor speed. 8. Universal input, can be connected to limit switch, estop switch, probe switch, 0 return, etc. 9. 4 universal isolation relay drive output interface, can drive 4 relays to control spindle start, forward and reverse, pump and other devices 10. With sate indicator, the state of the connection on the indicator board   Specification: Condition: Item: Control Card   Package List:  1 x Control Card 1 x Data Line 1 x CD Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.