MG90S
MG90S digital servo
MG90S is the most popular 9g metal servo in the world.

Specification:
Weight: 13.4g
Dimension: 22.8×12.2×28.5mm
Stall torque: 1.8kg/cm (4.8V); 2.2kg/cm (6.6V)
Operating speed: 0.10sec/60degree (4.8V); 0.08sec/60degree (6.0V)
Operating voltage: 4.8V
Temperature range: 0℃_ 55℃
Dead band width: 1us
Power Supply: Through External Adapter
servo wire length: 25 cm