This is the FUTABA S3003 STANDARD entry level Servo w/o Accessories.
This is a High Torque, High Speed Digital Mini Servo from Futaba.
This servo can produce high-current draw from your batteries. If using NiMH or LiPo batteries, make sure they are capable of delivering sufficient amps.
This is the Futaba S3004 Light Weight, Ball Bearing Servo. This basic servo is used in cars, boats, or where standard servos are used.
This is a Standard Servo with a Ball Bearing on the output shaft. This has a "J" connector and uses a nylon gears.
This is a S3002 High Torque Mini Servo for Cars or Sailplanes. This has metal gears, 3-pole motor, and two ball bearings