This is a Heavy Duty Futaba J-Series 400mm Servo Extension.
This extension goes between the receiver and the servo to make the wire longer.
On one end of the wire is a male connector
and on the other end of the wire is a female connector.
FEATURES: Connectors slide snugly together to guard against vibrating loose.
Gold-plated terminals improve conductivity and prevent oxidation for
Heavier, 20-gauge wire handles higher current loads with ease.
INCLUDES: One Heavy Duty Futaba J-Series 400mm Servo Extension
SPECS: Wire Gauge: 20
Length: 15-3/4" (400mm) (between terminal ends)
Wire Color Codes-
White: signal (polarity tab is on the signal side)