The KST X12-508 Micro Digital Servo is an ideal choice for Cyclic applications on 325-420mm helicopters that use micro servos such as the Align T-Rex 450, T-Rex 470L, MSH Protos 380, SAB Goblin 380, and Goblin 420 helicopters. Additionally these can be used in other R/C applications which are correctly sized dimensionally, and offer the correct torque/speed ratings when needed. Features: Micro size aluminum case Full metal gears Dual ball bearings HV compatible Lightning fast Coreless motor Specifications: Operating Voltage:4.8-8.4V Size:23x12x27.5mm Torque: 4.2kg.cm @ 6.0V; 6.2kg.cm @ 8.4V Speed: 0.09sec/60 @ 6.0V; 0.07sec/60 @ 8.4V Weight:20g Working Frequency: 1520us/333Hz, 800us - 2200us Motor:Coreless Ball Bearing: 2BB

KST X12-508 Micro Digital Metal Gear Servo