It Can Drive Four Stepper Motor Using Compatible Stepstick. Grbl V1.1 Compatible. (Open Source Firmware That Runs On An Arduino Uno That Turns G-Code Commands Into Stepper Signals)Uses Removable A4988 Compatible Stepper Drivers. (A4988, Drv8825 And Others) Pwm Spindle And Direction Pins4-Axis Support (X, Y, Z, A-Can Duplicate X, Y, Z Or Do A Full 4Th Axis With Custom Firmware Using Pins A4 And A3)2 X End Stops For Each Axis (6 In Total) + One Probe Coolant Enable Output Jumpers To Set The Microstepping For The Stepper Drivers. (Some Drivers Like The Drv8825 Can Do Up To 1/32 Micro-Stepping) Compact Design. Stepper Motors Can Be Connected With 4 Pin Molex Connectors Or Soldered In Place. Runs On 12-36V Dc. A4988 Stepper Motor Driverthis Stepstick Is A Carrier Board Or Breakout Board For Allegro A4988 Microstepping Driver With Translator And Overcurrent Protection And It Is Compatible With Pololu A4988 Stepper Driverstepstick Carrier Board Has All Component Need For A4988, So You Can Readily Wire It With Arduino Or Raspberrypi And Control The Stepper Motor. To Operate This Board, You Need To Have Knowledge Of A4988, Therefore We Recommend Careful Reading Of The A4988 Datasheet Before Using This Product [Stepper Motor Driver] Lets You Control One Bipolar Stepper Motor At Up To 1.5 A Output Current Per Coil. Features Of A4988Automatic Current Decay Mode Detection / Selectioninternal Uvlomixed With Slow Current Decay Modessynchronous Rectification For Low Power Dissipationcrossover-Current Protectionthermal Shutdown Circuitry3.3 And 5 V Compatible Logic Supplythermal Shutdown Circuitryground Fault Circuitload Short-Circuit Protectionfive Optional Step Mode: Full, 1/2,1/4,1/8 And 1/16.