See: PowerStar

PowerStar have introduced the new PC-3812 digital servo. Measuring 31.0×16.5×28.5mm, the servo features a black composite plastic case and offers a torque of up to 3kg-cm and a speed of up to 0.13s at 4.8V and 3.8kg-cm and a speed of up to 0.12s at 6.0V.