10-40V DC power supply 3-8 amps settable current Miniature size 1.665 ... driver with heatsink UIM 24008 stepper motor driver3-8 amps settable output currentMiniature size 1.665*1. ... seamlessly, as well as work standalone12-40VDC supply, Max 8 amps adjustable output currentFull, half, quarter and 16th ... helpful for heat radiation.Integrated Stepper Driver 8 amps phase current UIM24008 stepper driver