The CS-61-2/NFI/NMO from MCLI is a RF & Microwave Circulator with Frequency 5.8 to 7 GHz, Average Power Forward 25 W, Peak Power 250 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Coaxial Circulator. More details for CS-61-2/NFI/NMO can be seen below.