This is a Hitec HS-5745MG Digital Quarter Scale Servo. This servo is used where you need maximum torque such as 1/5th scale cars, trucks and large scale aircraft. It supplies 249.96 oz-in of torque and and a transit time of .15s at 6V (208.30oz-in, .18s @ 4.8V). It features triple ball bearings, programmable digital amplifier, MOS FET Amplifier, gold plated contacts, super efficient heat sink, durable heavy duty metal gears (one metal-resin gear), Indirect Drive Long Life Potentiometer, High Standing torque rating, it is waterproof, and includes a heat treated metal servo arm. It weighs 5.68ozg and measures 2.32"x1.14"x2.04".

FEATURES:

                                                 Triple ball bearings
                                                 Water and dust tight
                              Durable heavy-duty metal gears with one resin gear
                                  Comes with "S" servo plug installed
                                   Programmable digital amplifier
                                            MOS FET amplifier
                                          Super efficient heatsink
                                        Heat treated metal servo arm
                                                Gold plated contacts

   INCLUDES:

One servo
          Black round servo horn
          Black long double straight servo horn
          Black long and short single straight servo horn
          Blue anodized heat treated long double straight servo horn
          Four servo grommets
          Four brass eyelets
          Four S/T servo mounting screws

SPECS:   

          Length:      2.32"              (59mm)
          Width:       1.14"              (29mm)
          Height:      2.04"              (52mm)
          Weight       5.68oz             (161g)
          Operating speed:  .18 sec/60 degree at 4.8V
          Output torque:  208.30oz. in (15Kg.cm) at 4.8V