This one cost 32.- USD and is JK42BLS02 rated at 4000RPM, 24V and 10.6A in peaks. It also have Hall sensors and are perfect for testing my controller MC4X15A. This has similar dimensions to a Nema17, but mounting holes are located different. This was purchased for testing with MC4X15A as I needed a BLDC w/Hall and higher Ampere usage.