BMS-21HV High Voltage Micro Servo (Metal Gear) 3.2kg / .09sec / 15.2g

Great as a cyclic servo for 450 size helicopters!

Features: 
 Double ball bearing (Si-oil)
 Coreless motor rated for high voltage up to 2S Lipoly
 Alloy heatsink
 Digital signal design with 100% fitting square PWS
 Automatic measures central ms
 Digital IC (SOP package with 12bits transfer data)
 MOS-FET driver (spirited driver able to push over 7A power) 

Specs:
Weight: 16g 
Dimensions: 23 x 12 x 25.4mm 
Torque at  6V: 2.6kg/cm, 7.4V: 3.2kg/cm 
Speed at 6V: 0.11, 7.4V: 0.09 sec / 60 at no load

Operating Voltage: 6.0~ 7.4V
Spline count: 25

Made in Taiwan