This item includes:

       3PCS Nema23 Stepper Motor: 23HS8430

Frame Size:                        NEMA23  23HS8430

Step Angle:                        1.8 degree

Voltage:                             2.7V

Current:                             3.0A/phase

Resistance:                       0.9Ohm/phase

Inductance:                       3.8mH/phase

Holding torque:                270oz-in    (1.9N.M)  

Number of wire leads:         4  

Weight:                             1.0kg 

Length:                             76mm 

There has motor drivers DM542 in my store, welcome to view the item.

ACT Motor has one year warranty, if you have any problem with this motor, please contact me, thank you!

We product all kinds of motors & driver. And we can manufacture products according to our customer's design.

For more information you can click the website:

http://www.ebay.com/itm/Free-shipping-from-DE-DHL-3PCS-Nema23-stepper-motor-3D-57BYG-1-9NM-3-0A-CNC-CE-/181707318654?ssPageName=STRK:MESE:IT