KSTEP is a KFLOP expansion board designed specifically for plug-and-play stepper motor control. With only a motor power supply, stepper motors and the KFLOP+KSTEP you have all you need to start controlling 4 motors (or 8 with 2 KSTEPs).



http://dynomotion.com/KSTEP.html

If you prefer to purchase the KSTEP with the Ktopper additional shipping and handling charges will be applied.