STEPPERONLINE 5PCS Nema 17 Stepper Motor 1.5A 12V 45Ncm (63.74oz.in) 4-Lead 39mm Body W/ 1m Cable and Connector for DIY CNC/ 3D Printer/Extruder

I have a FoxAlien CNC, Masuter Pro. I swapped out to these steppers when one of the factory steppers died after 2 years of hard work. Decided to step up and double the torque. These fit and connected with no issues. So much stronger than the originals (25nm vs 48nm) I also changed out the 2mm belts to 3mm belts. HUGE improvement.

These motors seem to work fine but I had to use their cable and not the cable that was original to my printer. Their wiring is straight through - their motors are +-+- (a+ black, a- green, b+ red, b- Blue). Many other motors are +--+ (a+, a-, b-, b+). As you can see in the picture there is a crossover in the ribbon cable.

The construction and quality on these is great. Nothing to complain about, especially for the price. It's a standardized high quality design that has been implemented well.

I play around with these. I dropped them onto the hard floor by mistake and they still work perfectly. Wiring was simple. No corrosion, nothing. I don't about durability but they work under my tough conditions. Would recommend.

I bought these motors not for their ability to move things, but to make songs. They worked great. I made several songs, and all 5 of them carry the same rotational frequency used to make music. While I can't vouch for their torque, I did drop one off a table and it suffered no ill effects.