PSR2204M is a 2-phase open-loop spontaneous pulse driver with 32-bit DSP control, providing high stability, low noise, and superior vibration performance. It offers 16 speed levels, 8 selectable currents, adaptive motor identification, and precise current control to reduce heating. Features include optically isolated inputs, start/stop modes, and full protection. Size: 86×55×21 mm, weight 0.12 kg.