3 Axis, 2.5 Amp Compact Microstepping CNC Controller PN: 5501-3-025-M +Quote Loading... 3 Axis, 2.5 Amp Compact Microstepping Controller – Completely Integrated System Includes Integrated CNC System Including USB Signal Generator, 2.5A Microstepping Drive Modules, I/O Ports, 30VDC Power Supply, FlashCut CNC Software and Documentation.