This is the Hitec HS-225BB Mighty Mini Universal Ball-Bearing Servo. This servo has a universal connector, which means it will work with Futaba, JR, Hitec, and Airtronics Z style radios. The servo lead on this servo is about 10" long.
The HS-225 series represents a good value with performance that rivals other larger and more expensive servos. Ideal for applications that call for a small, lightweight, high speed, high torque servo, the HS-225BB high performance mini servos feature a top ball bearing and is built with state-of-the-art SMT technology.
SPECIFICATIONS: Length - 1.27" Weight - 0.95 oz (27g)Width - 0.66" Torque - 54.15 / 66.65 oz.in (4.8v/6v)Height - 1.22" Speed - 0.14 / 0.11 sec @ 60 deg.