This is the Hitec HS-755HB 1/4 Scale Karbonite Gear Servo with the Universal Connector.  The universal connector means that this servo will work with all current JR, Futaba, Hitec, and Airtronics Z receivers and wiring.

This servo has the revolutionary Karbonite gears. This is perfect for larger R/C applications and features dual ball-bearings with a water and dust resistant case. The HS-755HB produces 183 oz./in. of torque at 6 volts.

Features:

• Ball bearing
• Karbonite gears

Includes:

• One servo
• Black round servo horn
• Black long and short double straight servo horn
• Black long and short single straight servo horn
• Four servo grommets
• Four brass eyelets
• Four S/T servo mounting screws
• Decals

Specifications:
Length:       2.32"
Width:        1.14"
Height:       1.96"
Weight       3.88oz
Operating speed:  .28 sec/60 degree at 4.8V
Output torque:  152.75 oz-in (11 kg-cm) at 4.8V