This is the Savox SC-1268SG High Torque Steel Gear Digital Servo (High Voltage). Savox have now released their 'High Voltage' servo line that can be powered by a unregulated LiPo battery! These servos These servos also feature a redesigned motor/controller unit, and use a 'bullet proof' all steel gear set for unmatched strength.

Features:

Combines leading edge technology with super high 12 bit (4096) resolution.
Higher performance due to increased voltage and improved technology
Incredible torque
Increased transit speed
Increased efficiency
Water resistant with 4 silicon seals implanted
Strong and precise-made steel gears
Suitable for 1/8th nitro racing and large scale aircraft, 600 and 700 class helicopters.

Dimensions(mm): 40.3x20.2x37.2
Weight(g): 62.0
Speed(@4.8V sec/60): .15
Torque(@4.8V oz-in): 160.0
Speed(@6.0V sec/60): .13
Torque(@6.0V oz-in): 208.3
Speed(@7.4V sec/60): .11
Torque(@7.4V oz-in): 347.2
Gear: Unique Steel
Bearing: 2BB
Case: Aluminum
25 Tooth Spline