12PCS MG90S Servo Micro 180° 9G Servo Motor Geared Micro Servo Motor 9G Smart Robot Compatible with Raspberry Pi Project Car Helicopter Airplane Boat (180 Rotating)

Arrived well packed and work as they should, good deal and would recommend and also would buy again

Used these in a ground based (thankfully) project. 12 servos. 4 plugged into the board overloaded the 3 amp buck converter at an idle. Found some the pulled too many amps. A few completely dead. Some get hot. All are extremely weak. Your milage may vary, but there is no way i would purchase these again for any purpose let alone in a flight application. Of the 12, 5 are still in project. They are getting cycled out as i write this. Consider Miuzei instead. So far they are working smoother. On teardown they are not even MG90 servos. All gears are plastic but the one you see on the outside.

Although many people are saying there are some plastic gears in there, the main one is metal. It has worked well for my RC plane projects, and have taken a beating, but still work just fine.

Cannot go wrong with metal gears. Use these in my foamie airplanes. Good price.

Beware - if you are a DIY custom builder, these new servos can no longer be “wire reversed”. You’ll have to buy a separate signal reverser if you want your servo to run “backwards”.

These servos are better than other for some reason. They are quieter the plastic case appears to be a higher quality but has the same mg90s stickers. I’m confused but I’m going to use that. Buy again button as soon as the need arises

Horrible reaction time, glitches. Tried the same reciever with quality servos just to see if it was the reciever and it worked flawless. WOULD NOT RECOMMEND THESE SERVOS IF YOU LIKE YOUR PLANE.

At first, these outwardly resemble Tower Pro MG90S servos. Have similar colored labels. But they are dimensionally different than the real thing. We needed to replace a failed servo and these do not fit because the splined shaft is a different size than the real thing. Other than that, they're probably okay. But if they are going to make a product that looks like the real thing, they should at least make it fit like the real thing. Under the microscope, it becomes clear that the output shaft is sintered metal, not machine-cut, and internal gears are plastic gears. As long as you're ok with that, and the fact that it is not a direct-fit replacement for true metal-gear Tower Pro servos, these might be fine for your application.

Working well