Package Include 1×Mach3 USB Motion Card1× USB Cable Notice The motion control card for machine control, with strong professional. Requires the operator to have the relevant expertise!Please strictly follow the instructions and warnings before using this product.If you are not familiar with the product and software features, make sure the machine's power switch on hand, you can quickly turn off the power.It is recommended that the limit switch and emergency stop switch must be installed first and can be used normally. USB MACH3 Motion Control Card Features: Support for 4-axis linkage, you can connect four stepper motor drives or servo drivesMaximum step-pulse frequency is 100KHz,which is suitable for the servo or stepping motor4 general-purpose opto-couplers isolation input : can connect the limit switch, emergency stop switch, auto tool zero, home switch etc.Support for connecting electronic handwheel Have 0-10V signal output , you can use mach3 software to control the spindle motor speed 4 general-purpose isolated relay drive output interface, can drive four relays for controlling the spindle starts, forward rotating and reverse rotating, pumps or other device 1 status LED, indicate connection status on the board This USB motion card does not need install any USB driver, It can be identified directly. Mach3 MPG setup Note: The electronic handwheel selection 5V voltage output models, more than 5V output will damage the handwheel interface, refer to the belwing wiring diagram.