The RMCI.2300-2500Sf5 from Response Microwave Inc is a RF & Microwave Circulator with Frequency 2.3 to 2.5 GHz, Average Power Forward 5 W, Insertion Loss 0.3 dB, Isolation 23 dB. Tags: Coaxial Circulator. More details for RMCI.2300-2500Sf5 can be seen below.