From leading servo manufacturer Highest, comes this servo aimed at being great value but with great performance. The HSC600 uses a coreless motor with full metal gears with great efficiency and has the following spec.

Specification

POWER SUPPLY : 6.0V~7.4V
TORQUE(Dynamic torque) : 21.2Kg.cm ~ 27.8Kg.cm
SPEED : 0.12sec/60° ~ 0.09sec/60°
SIZE : 39.5 * 20.0 * 39.6 mm
WEIGHT : 56.90g