This is the HS-225MG Precision Mini Servo from Hitec.

This version has the Universal S/Z/JR, Futaba J Connector. Connector is compatible with all modern receivers and wiring accessories.

FEATURES:

• Lightweight and small; ideal for sailplane or weight-sensitive applications
• Ball bearing
• Metal Gears
• Indirect drive
• Hybrid/ Circuit

INCLUDES:

• One HS-225MGS metal gear micro servo
• Four screws, grommets, and eyelets
• Three servo arms and one wheel

SPECS:

• L: 32.4mm x W: 16.8mm x H: 30.8mm (1.27" x 0.66" x 1.21")
• Transit: 0.14sec/60° (4.8V) 0.11sec/60° (6.0V)
• Torque @ 4.8V: 3.9 kg-cm, (54.2 oz-in) @ 6.0V: 4.8 kg-cm, (66.7 oz-in)
• Weight: 31g (1.09oz)