This is the CS-35 High Power Mini Servo from Hobbico.

FEATURES: Universal Connector Fits Futaba, Hitec, JR, KO Propo, Airtronics Z,
            and Tower Hobbies, NOT Airtronics old 'A' plug.
          Very High Torque Mini Servo, Great For Smaller Models Needing High
            Power
          High Speed For Sharp, Quick Response
          Top Ball Bearing For Smooth Precise Output Control
          Rugged Gear Train Provides Accurate, Reliable Operation
          Surface Mount Technology (SMT) Allows This Servo To Be More Reliable
            In High-Vibration Environments

INCLUDES: One CS-35J Servo
          One Large X-Shaped Servo Horn
          One Small X-Shaped Servo Horn
          One Mounting Hardware Bag

SPECS:    Speed: .14 sec
          Output Torque @ 4.8V: 54 oz-in (3.93 kg-cm)
          Weight: .95oz (27g)
          Length: 1.3" (32mm)
          Width:   .7" (17mm)
          Height: 1.2" (31mm)
                                                                    JAL 10/3/99
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