This is the DS8911 Ultra Torque SX Digital Servo from JR. The unmatched power of JR’s DS8911 standard-size digital servo is nothing short of astonishing. But the 8911’s story doesn’t end with its awesome power.
The 8911 also has all the speed, the holding-power and the zero-deadband precision that have made JR digitals the choice of serious racers right from the start. Plus it’s also the first JR digital to feature an aluminum heat sink section for optimum reliability.
Features:
Anodized aluminum heat sink
403 oz/in torque

Specifications:
Type: Digital Ultra Torque
Torque: 347 oz/in @ 4.8V, 403 oz/in @ 6V
Speed: .19 sec/60° @ 4.8V, .15 sec/60° @ 6V
Dimensions (WxLxH): 82" x 1.58" x 1.56"
Weight: 2.36 oz
Gears: Metal alloy