Stepper Motor Driver, 18-80V AC/ 24V -120V DC 2.0A-7.2A CNC Controller 1/128 Micro-Step, 2-Phase Digital Stepper Motor Driver for Nema 23 24 34, Upgraded DM860H: Amazon.com: Industrial & Scientific
CNC Digital Stepper Driver DM556 Stepper Motor Controller 2-phase Stepper Motor Driver 20-50V DC Max 5.6A 128 subdivision For Nema 23, 24 and Nema 34 stepper motor - - Amazon.com
Digital Stepper Motor Driver, 2 Phase, DC 24V ~ 50V | ATO.com