This is a Reef's RC REEFS12 400SC High Torque High Speed Digital Brushless Servo. Internal: Titanium & Aluminum Gears Aluminum Center / Plastic Top/Bottom Bearing Type: 2BB Weight: 2.3oz Dimension: 1.6x.8x1.5 (LWH) Torque: 344oz @ 6.0V / 400oz @ 7.4V / 427oz @ 8.4V Speed: .09sec @ 6.0V / .075sec @ 7.4V / .07sec @ 8.4V Spline: 25T Dead Band Width: 2us. Manufacturer: Reef's RC. Model Number: REEFS12. Category 1: Control & Electrical - RC. Category 2: Control. Availability: Ships in 4 to 10 Business Days. Trainz Product Id: 12408804.
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