Features: _x000D_ Support for 4-axis linkage, you can connect four stepper motor drives or servo drives. _x000D_ Maximum step-pulse frequency is 100KHz, which is suitable for the servo or stepping motor. _x000D_ Support automatic probe tool. _x000D_ Support emergency input. _x000D_ Support for limit switch. _x000D_ Support for connecting electronic hand wheel. _x000D_ Need use external 24V DC power supply to isolate USB and external port, and to make the system more stable. _x000D_ Have 0-10V output port, you can use MACH3 software to control the spindle motor speed. _x000D_ 4 general-purpose inputs, you can connect the limit switch, estop switch, probe switch, back to zero and other device. _x000D_ 4 general-purpose isolated relay drive output interface, can drive four relays for controlling the spindle starts, forward rotating and reverse rotating, pumps and other device. _x000D_ Status LED, indicate connection status on the board. _x000D_ _x000D_ _x000D_ Specification: _x000D_ Interface board size: 9*6.3*2cm/3.5*2.5*0.8in _x000D_ Jog handler size: 10*6*2.5cm/3.9*2.4*1in_x000D_ _x000D_ Weight: Approx.200g/7.1oz _x000D_ _x000D_ _x000D_ Package list: _x000D_ 1 x USB CNC Controller Card _x000D_ 1 x Jog Handler_x000D_ 1 x USB cable_x000D_ 1 x CD _x000D_ 1 x Connecting Cable_x000D_ _x000D_ _x000D_ Note:_x000D_ New-style and old-style are shipped randomly