Features: _x000D_ This CNC engraving machine controller is specially designed for Mach3 system._x000D_ _x000D_ Easy to use, no need to install any software or drive, connected by USB port and the cable can be stretched to about 3 meters. _x000D_ _x000D_ The controller has all commonly used functions for Mach operation, and can move both axles simultaneously._x000D_ _x000D_ Integrated function keys including emergency stop, cycle start, spindle on/off and so on._x000D_ _x000D_ 12*12mm buttons ensure that your finger will not interfere with the adjacent buttons._x000D_ _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Compatibility: For Mach3 only _x000D_ Connector: USB _x000D_ Size:Approx. 22.2 x 8 x 5.6cm/8.7 x 3.1 x 2.2in _x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1 x Controller_x000D_ _x000D_ _x000D_ Note:_x000D_ _x000D_ Please note that the color of the button will be sent randomly, and make sure you will not mind before ordering.