HobbyKing™ Mi Digital High Torque Servo

The HK Mi Series servos represent the next break through in high precision servo technology. Using Magnetic Induction, rather than a potentiometer, for an unsurpassed level of accuracy and performance.
Specs:
Voltage: 4.8v / 6v
Speed: 0.08sec / 60deg (4.8v) - 0.07sec / 60deg (6v)
Torque: 9.70kg.cm (4.8v) - 11.8kg.com (6v)
Size: 40.2mm x 20.1mm x 39.2mm
Weight: 61g
Gear Train: Full Titanium Alloy
Motor: Coreless
Spline Count: 25

Mi : Magnetic Induction, uses a Magnetic Rotary Encoder in place of a traditional potentiometer (invented in 1877). Magnetic Rotary encoders have a longer life and suffer less wear.