This is the Savox SC-0254MG High Torque Standard Size Digital Servo.

Features:
Over-spec refined design out performs ordinary servos. Precision metal gears form a strong and solid framework. Strict production and quality control of plastic components ensures long life and reliability. Savox servos are totally green – from materials to production, these servos are environmentally friendly. Ideal for 30 size airplanes and steering for 1/8th scale buggies.
Dimensions(mm): 40.7X19.6X39.4
Weight(g): 49.0
Speed(@4.8V sec/60): . 19
Torque(@4.8V oz-in): 86.1
Speed(@6.0V sec/60): . 14
Torque(@6.0V oz-in): 100.0
Gear: Metal
Bearing: 2BB
Case: Plastic
25 Tooth Spline is compatible with Futaba servo horns
Frequency: 200-250hz
Pulse Width Frequency: 1520


Dimensions(mm): 40.7X19.6X39.4
Weight(g): 49.0
Speed(@4.8V sec/60): . 19
Torque(@4.8V oz-in): 86.1
Speed(@6.0V sec/60): . 14
Torque(@6.0V oz-in): 100.0
Gear: Metal
Bearing: 2BB
Case: Plastic
25 Tooth Spline is compatible with Futaba servo horns
Frequency: 200-250hz
Pulse Width Frequency: 1520
Running current (at no load): 220 mA @ 4.8V
Running current (at no load): 240 mA @ 6.0V
Stall current (at locked): 1300 mA @ 4.8V
Stall current (at locked): 1500 mA @ 6.0V
Idle current (at stopped): 6 mA @ 4.8V
Idle current (at stopped): 6 mA @ 6.0V
Limit angle: 180° ± 10°
Connector wire gauge: ＃26 AWG
Connector wire length: 300 ± 5 mm
Horn gear spline: 25T
Control system: Pulse width modification
Amplifier type: Digital controller
Operating Travel: 120° (when1000→2000 μsec)
Neutral position: 1500 μsec
Dead band width: 5 μsec
Rotating direction: Counterclockwise (when1500→2000 μsec)
Pulse width range: 800→2200 μsec
Maximum travel: Approx 164°(when800→2200 μsec)