* Cnc Brekout Board, CM-100, Mach3, EMC2, DB25, Parallel Cable, Free Shipping
Features
1. 4-Axis Line Driver Output. 2. DC Voltage Output for Controlling Spindle Speed. 0~10V / 0~5V Selection.
3. 2-Relay Output.
4. 5-Switch and Sensor Input.
5. DC Output Power, +24V, 105mA
6. Included Parallel Cable.
Go to User's Manual below..
http://www.cnc4youstore.com/mach3-db25-cnc-breakout-board-cm-100.html