This is Sanwa SRG-BZX Type-R Lead Aluminum High Torque Brushless Servo (Metal Gear)
Sanwa Super Response (SSR) support
LiPo (2cell) Battery Support
Aluminum Heatsink
High Torque Type
Brushless Motor
Metal Gear
Hybrid A Gear
Speed: 0.09sec/60°(7.4V) 0.12sec/60°(6.0V)
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