Spektrum DS821 Digital Sport High Torque Servo 0.15s/88 oz-in
This is a Spektrum DS821 - Digital Sport High Torque Servo. Torque: 4.8V: 72.00 oz-in (5.18 kg-cm). Weight: 1.50 oz (42.5 g). Modulation: Digital. This will give you access to the full website which will show the link.