OS Motor Brushless Motor
As a note, previously reported by RC Mania was the announcement/introduction of the brushless motor series for fixed wing by OS Motor and at that time the motors were shown with the prop shaft installed. If you missed the initial post of OS Motor Brushless Motor series, click HERE.
Here in the unboxing pics the motors are shown with the regular shaft. Also to note, it looks like the 4 sizes of brushless motors are being unboxed, but it is the OMA-3800-1200 is shown up close.
Source: RC Mania