Futaba HPS-CT501 - Low-Profile Servo for 1/10 Scale Cars - UR Mode The new HPS-CT501 is developed specifically for RC cars that needs a low-profile and high performance servo but don't need the full aluminium case that the CT701/702 has. Futaba's HPS servos includes a new generation brushless HPS motors that has been developed to run more efficient and cooler. UR mode setting: make sure that your SR/UR mode transmitter and receiver are updated with the latest software! The servo is compatible with the Futaba SR mode ("Super Response") of the T7XC, T7PX and T4PM systems. HPS-CT501 Features: Suitable for RC cars drift and 1/10 scale on/off road & boats Resin case Gears: 1st, 2nd ,3rd and final metal gears HPS brushless motor technology UR compatible (Ultra Response) SR compatible (Super Response) High Voltage Ball Bearings Potentiometer with low wear High Resolution S.BUS2 compatible Cable color : Black-grey Can be connected to a PC using the CIU-2/-3 USB adapter sold separately Programmable/HV Brushless Servo - compatible with S.Bus and S.Bus2 systems Specifications: Rated Voltage: 6.0 - 7.4V Operating Voltage: 4.8 - 8.4V Speed: 0.07s/60° @ 6V Speed: 0.06s/60° @ 7.4V Power: 17.1kg/cm @ 6V Power: 21kg/cm @ 7.4V Size: 40.5 x 21 x 26.9 mm Weight: 44 g