Futaba S9405 Servo Coreless High-Torque BB  [S9405]

that's a Futaba S9405 Servo with J connector.
For use with 1/8 Scale Nitro cars.
One Year Warranty

This servo makes high-current draw from your own batteries.
If using NiMH or Li-Po batteries, encourage them to capable
of delivering adequate Amps.

FEATURES: Coreless engine (smoother and more powerful than standard servo engines)
High torque
Dual ball bearings
Grommets that protect the interior elements from dust and water
damage.
This is a partial metal gear servo (has 2 metal gears)

INCLUDES: One servo with J connector
One little round horn
One big circular horn
One X-shape horn
One 6-arm horn
One accessory package
Warranty card
SPECS: Speed: .14 sec/60 deg @ 4.8V - .11 sec/60 deg @ 6V
Torque: 80 oz/in @ 4.8V - 100 oz/in @ 6V
(5.8 kg/cm @ 4.8V - 7.2 kg/cm @ 6V
Weight: 1.9 oz (55g)
Length: 1.6" (41mm)
Width: .8" (20mm)
Height: 1.5" (38mm)

COMMENTS:
A note on coreless engines: the standard servo engine has a steel
core armature covered with wire that spins inside magnets. In
a coreless design, the armature makes use of a thin cable mesh that sorts a
cup that spins through the maybe not toward magnet eliminating the
heavy steel core. This design causes smoother procedure and
faster reaction time.