https://m.act-motor.com/two-phase-four-phase-hybrid-stepper-motor-driver-dm2522-product/
China Two-Phase, Four-Phase Hybrid Stepper Motor Driver DM2522 Manufacturer and Supplier | ACT
Stepper motor driver DM2722, 7A, 110-220VAC input,16 channels constant angle, constant torque micro steps, highest micro step: 60000ppr.
hybrid stepper motor