This is the S9350 Digital Servo w/Two Ball Bearings for Car and Boat Use and Comes with "J" Connector Pre-Installed. Metal case acts as a Heat Sink to reduce Heat and is designed to be Water and Dust Resistant. Comes with Heavy Duty wiring that can handle Higher Current Loads New Metal casing which helps to dissipate heat Coreless Motor Dual Ball Bearing Output Shaft Metal Gears High Torque Dust and Water Resistant Great for 1/8 Cars or Boats Where Higher Torque and Speed are Needed One year warranty One Digital High Torque Servo w/Small Round Horn Four Rectangular Grommets Four Brass Bushings Four Mounting Screws One Large Round Horn One Six Arm Horn One Four Arm Horn Speed: .15 sec/60° @ 4.8V .12 sec/60° @ 6V Torque: 111 oz-in (8.0 kg/cm) @ 4.8V 139 oz-in (10.0 kg/cm) @ 6V 1.6 x 0.8x 1.4" (40 x 20 x 37mm) Weight: 2.2oz (61g) S9350 Digital Servo Precautions, -It is best to avoid long leads and Y-harnesses especially with standard grade wires. If problems are encountered, consider using heavy duty wire such as Futaba's Heavy Duty Series or Hobbico's Pro Series, minimizing lead lengths, and/or removing Y-harnesses. -Current Drain: Futaba S9350 Servo is Specially Designed for High- Torque and High-Speed, Therefore Very High Current Drain Is Normal At Startup. For Ultimate Performance When Using This Servo Please Review The Following Points. (1) When Using Systems With the Battery Fail Safe Function it Has a Higher Cut-Off Voltage Setting Which Will Cause Shorter Operation Time. (2) When Installing the Servo Please Check Pushrod Linkage To Make Sure There Is No Binding in Order To Prevent Excessive Power Consumption and Decrease the Life of the Motor and Battery. This digital servo cannot be used with the following * AM * transmitters as the servo neutral signal is: 1310us). CONQUEST AM, FG Series (T4FG, T5FGK,T6FG, T6FGK, T7FGK), New Terratop, T3EGX, T3PGE, T2NL, T2LGX, T2FR, T2PK series. **** Otherwise they will work fine with current AM systems ***** updt jxs 10/31/03 &