The reveals a servo that punches above its weight class. For under $10 (often $6-8 in bulk), you get metal gears, dual ball bearings, and a reliable analog control system that works with virtually every microcontroller and RC receiver.
: Often utilized in 1lb to 3lb combat robotics and educational STEM projects using Raspberry Pi or Arduino. Comparison & Related Models Emax Es08ma Ii Datasheet