This is a Hitec HS-81S Micro Servo with a Universal Futaba J, Hitec S, JR and Airtronics Z Connector. Connector is compatible with all modern receivers and wiring accessories

FEATURES: Compact, Lightweight Design-Ideal for Electric Airplanes and Sailplanes Strong, Dependable Gear Train High Torque and High Speed Mounts with Two Screws

INCLUDES: One HS-81S Micro Servo with 6-3/4" connector wire. One 7/8"x7/8" X-shaped servo horn One 1-1/8" long straight servo horn Two brass eyelets Two mounting screws Two servo grommets One servo horn screw

REQUIRES: Radio system.

SPECS: Transit Speed: 0.11 sec/60° @ 4.8V 0.09 sec/60° @ 6.0V Output Torque: 36.10 oz-in @ 4.8V (2.6 kg-cm) 41.66 oz-in @ 6.0V (3 kg-cm) Length: 1.17" (29.8mm) Width: 0.47" (12mm) Height: 1.16" (29.6mm) Weight: 16.6g (0.58oz) Mounting holes on-center: 1.31"(33.27mm) ir/jl updt  

BOX DIMENSIONS: 2.00" W. X 1.88" H. X 2.50" L. BOX WEIGHT: .07 LBS.