This is the REEFS RC 444HD High Torque High Speed HV Waterproof Servo V2 0.10/444 @ 7.4V
Features
Must use a m3x8mm screw to attach the servo horn to output shaft. Use of a shorter screw can cause failure and will void your warranty.
*High Torque High Speed HV Coreless WATERPROOF : Not a Submarine
*BEC Highly Recommended
Specifications
Water-Resistant: Yes
Application: 1/10 - 1/8 Cars, Trucks
Product Weight: 2.2oz (62g)
Spline Count: 25 - Tooth
Maximum Servo Torque: 422oz/in @ 6.0V, 444oz/in @ 7.4V
Product Width: 0.8" (20 mm)
Servo Operating Voltage: 6.0 - 7.4V (HV)
Bearing: Dual Ball Bearings
Bushing Or Bearing: Bearing
Gear Type: Metal
Connector Type: Universal
Maximum Servo Speed: 0.11 sec/60 deg @ 6.0V, 0.10 sec/60 deg @ 7.4V
Product Length: 1.6" (41 mm)
Programmable: No
Servo Size Category: Standard
Servo Type: Digital
Deadband: 2µs
Product Height: 1.5" (38 mm)