100% brand new from STEPPERONLINE (The No 1 distributor in the world for stepper motors and drivers).

The ISD08 is a parallel port control series of miniature high performance stepper motor drivers. Its biggest feature is its small size and strong driving ability. Its thickness is less than 14 mm. They can be directly mounted onto NEMA 23, 24, 34 series stepper motors with the corresponding flange. ISD08 can provide 3-8A adjustable peak current. Its high-speed current compensation function can compensate for the effects of back electromotive force when the motor rotates at high speed.

You may need a bracket for mounting this driver to your motor: ST-M10

• Miniature size 42.3 x 42.3 x 16.5 mm
• Integrated with the motor, can also work separately
• All-aluminum precision cast housing, sturdy and durable, good heat dissipation
• Wide range input voltage
• 3 - 8 A adjustable output current
• 5 selectable microstep resolutions including 100,200,400,800,1600
• H-bridge bipolar constant current, online controllable offline / enable
• Optical-isolated inputs
• Automatic Current Reduction
• Maximum frequency of whole step 12KHz;Maximum frequency of 3200 microstep 200KHz

• Manual: ISD02.pdf