WANDERER ASTRO ROTATOR MINI M54

Folks, personally spend a bit extra and get a tested and proven unit. The Rotator itself is not too bad from a construction perspective. What is evident though are bugs in the driver that have been confirmed by the manufacturer where by the feedback from the servos may go haywire and present an output that does not represent the actual positioning of the rotator. If this happens when you are imaging you have lost the nights effort.
The big issue with the version that I purchased ( and current version available ) is that there is a design flaw whereby there is 5 volts present on the USB interface and also 5 volts present on the 12 volt input plug. Because of this one needs to be very conscious of having active voltage on the plug to the rotator. The manufacturer has stated they are putting a diode on the next version to counter this back voltage on the USB side but have not confirmed the positive voltage on the 12 volt input terminal if plugged into an USB powered hub or control unit. I was told by the manufacturer if I was using a controller such as the Wanderer or Pegasus units to turn off the USB interface via the software before unpluging.
Personally if you can afford it, buy something of better quality. The unit does rotate and has next to no backlash so I cannot complain re the mechanical aspects of it but be aware that if the driver has issues, getting a zero degree position will mean starting from scratch.. Overall reliability is probably what you would expect for the cost.