This is a Reef RC 422HDV2 High Voltage, High Torque Titanium Gear Digital Servo. Features: Fully Programmable w/ REEFS Software (REEFS LINK required for Programming) Built in preprogrammed winch controller Pulse Width Modulation Control High Torque Digital Coreless Servo 7’ Silicone Coated Steel Braided Line w/ Scale Recovery Hook Speci