This document summarizes the specifications of the RCP2 ROBO Cylinder rotary actuator. It has a 50mm width and uses a pulse motor. The output torque and allowable moment of inertia vary depending on the rotational speed. It has a rated acceleration of 0.3G and deceleration ratios of 1/20 and 1/30 are available. It can be used with various ROBO controller models including PMEC, PSEP and PCON series.