This is the Savox SV-1273TG Plus ultra speed high voltage titanium gear digital servo.

The "Plus" series servos feature soft start and Sanwa SSR compatibility.

Features:

• Super strong, precision-made titanium gears provide durability that will survive heavy use.
• Capable of HV operation.
• Ideal for 1/10 buggies and some helicopter applications.

Specifications:

• Torque @ 7.4V: 20.0kg/277.7oz-in
• Torque @ 8.4V: 25.0kg/347.2oz-in
• Speed @ 7.4V: 0.065 sec/60 deg
• Speed @ 8.4V: 0.055 sec/60 deg
• Dimensions (L x W x H): 40.3 x 20.2 x 37.2 mm
• Weight: 64.0g.