Features: Brand new and high quality Supply voltage DC24-80V or AC18-50V. Drive current: 2.4-7.2A. Subdivision precision: 2-200 Subdivision options. Opto-isolated signal input. Motor sound optimization function. Can drive any 2.0A under current 2-phase or 4-phase hybrid stepper motor. 200KHz chop frequency. Specifications: Input current: 24~80V DC power supply, capacity: not less than 200VA. Typical value: DC 36V Output current: 2.4A~7.2A, 8 gears adjustable, Resolution 0.5A Operating mode: Dual constant current PWM drive output Insulation resistance: Normal pressure and temperature >500M Insulation strength: Normal pressure and temperature 500V/min Weight: approx. 400g Size: approx. 10.6x8cm/4.17x3.15in Note: No retail package. Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC x DM860H Stepper