The maximum step-pulse frequency is 2000 KHz. Description: This is the latest generation 4 axis Mach4 motion control card, which is the fourth generation calling MK4-M4.
Mach4 CNC 4 Axis Motion Control Card USB 2MHz Breakout Board for Machine #NEW sj USB 2MHz Mach4 CNC 4 Axis Motion Control Card Breakout Board for Machine Centre.