No Superior Designs RC RS400 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 RS400 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 weight
• 5-gear stainless steel design 
• Black anodized all CNC-machined aluminum case provides high durability and improved heat dissipation
• Hardened stainless steel qears
• High Efficiency Coreless Motor
• Water Resistant (Not Recommended to submerged)
• 11 Point O-ring seal
• Dual Ball Bearings
• High quality magnetic angle sensor
• High voltage (HV) 8.4V capable!

Specifications:

• Type: Low Profile High Speed Racing Servo
• Motor Type: Coreless
• Operating Voltage: 5V - 8.4V
• Gears: Hardened Stainless Steel
• Spline: 25T
• Dimension (LxWxH): 40x27x20mm
• Weight: 64g
• Case: CNC-Machined Aluminum
• Torque:
  • 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) RS400 Low Profile Racing Servo
• Multiple composite horns
• Mounting screws, bushing and rubber grommets