FeaturesBrushless motor design provides extremely high speed, top efficiency, and low power consumption.4096 resolution and SIC (Single Integrated Circuit) for the highest performance and durability.Aluminium middle case for optimized thermal dissipation.Strong Metal GearGlitch-freeSophisticated error correctionHigh-Speed, High-precision 12-bit AD converter and CPU calculationFail safeOver current protectionOver temperature protectionStart sonorant SPECIFICATIONS Type StandardProduct Name SN-5401-HVPart Name SN-5401-HVPower Supply 6.0V~8.4VSpeed (sec/ 60) @6.0V: .105 sec/60 @7.4V: .085 sec/60 @8.4V: .075 sec/60Torque (kg/cm) @6.0V: 14.92 kg-cm @7.4V: 18.4 kg-cm @8.4V: 20.89 kg-cmDimensions 40x37.80x20 mmWeight 66.3 gFrequency 200/333 HZRange 50~400 HzCenter Position 1520msApplications Car / HelicopterUpper and Bottom Case XP-01Hardware Parts Xpare-01Gear Set XGS72320