Dynamixel Robotis RX-64 Servo HN05-N101 (New horn)
Robotis RX line of Dynamixel Serial servos is designed for high end Robotics applications offering great reliability (with Full Metal Gears), High torque and High Speeds (in this RX-24F version).
The servos have RS485 Daisy Chain serial interface for reliable communication and include a protocol with several Compliance and Status parameters that can be queried and configured at speeds up to 1Mbps.
The RX-64 Servo offer up 64kgf.cm of holding and is the most powerful servo on the RX line of Servos. (if you need higher torque, Robotis has the Dynamixel EX line with over 100kgf.cm of torque)