I had high hopes for this little motor drive, however, I received a package from Meade that contained no motor drive. It was instead a part for a telescope completely unrelated. So, I returned the totally wrong item that was shipped to me. I decided to reorder it from another retailer. Here's my review of the motor once I got the right item. This motor drive will not track stars and planets with ease. It has a variable motor that is impossible to calibrate properly. It does not track at sidereal rate (earth's rotation). It's either too fast or too slow and you will never get clear images if you're trying to use this with a camera - due to motion blur. It also stops and won't start half the time when you turn it on. It also disables your fine adjustment knob for the RA Axis, so you have to manually align your scope, which is VERY difficult to do. All-in-All, I don't recommend this. The only thing positive I can say is that it will slow down the movement of planets to keep them in the field of view a little longer.