1.stepper motor driver (42,57,86 driver mixed) 2.rated current 1.3-6.0A 3.voltage: ... .Competitive price FX860A MOTOR DRIVER1. DESCRIPTIONIt is the stepper motor driver of 40,57, 86., 16types Micro step division,. It can ... types of SMALL or MEDIUM automatic equipment such as Engraving machine, cutting machine, packaging machinery, electronics processing equipment and automatic assembly equipment ...