The Dynamixel AX-18A Smart Serial Servo from Robotis is a step up from the AX-12A servo providing twice the speed and 15% more torque. The AX-18A has additional feedback information such as speed, temperature, position and load.
This is a spool of Fiber Optic Cable with slip ring for tethered control systems. It includes the media converters and provides a transparent ethernet connection that is 1km long. Different lengths can be requested.