No Superior Designs RC SS400 Low Profile High Voltage Racing Servo. Designed with speed and precision in mind to deliver an incredible 400oz-in of torque and 0.05 transit speed at 8.4V! Making this servo a top contender for many 1/18 to 1/8 scale on-road and off-road vehicles used for racing, drifting, and anything else requiring lighting fast speed, awesome responsiveness, and great power! Other features include a full CNC-machined aluminum case that provides high durability and improved heat dissipation, an industry leading 5 gear stainless steel gear train that is supported by dual ball bearings, and a high efficiency coreless motor. In addition, using the industry leading 5-gear stainless steel gear-train alongside a high quality magnetic angle sensor that gives the SS400 a superior centering with extreme precision, smooth actuation and unrivaled durability!NOTE: The power connection plug, or power switch on your ESC, must be disconnected and turned off when not in use to prevent damage to the servo and/or battery! Not recommended to power using a balance plug.Features:Low-Profile case design that saves space and weight5-gear stainless steel design Black anodized all CNC-machined aluminum case provides high durability and improved heat dissipationHardened stainless steel gearsHigh Efficiency Coreless MotorWater Resistant (Not Recommended to submerged)11 Point O-ring sealDual Ball BearingsHigh quality magnetic angle sensorHigh voltage (HV) 8.4V capable!Specifications:Type: Low Profile High Speed Racing ServoMotor Type: CorelessOperating Voltage: 5V - 8.4VGears: Hardened Stainless SteelSpline: 25TDimension (LxWxH): 40x27x20mmWeight: 64gCase: CNC-Machined AluminumTorque:6V: 290oz-in (21kg-cm)7.4V: 345oz-in (25kg-cm)8.4V: 400oz-in (29kg-cm)Speed:8.4V: 0.07 sec/60°12.6V: 0.06 sec/60°16.8V: 0.05 sec/60°Includes:(1) SS400 Low Profile Racing ServoMultiple composite hornsMounting screws, bushing and rubber grommets