The CS-2-1/NMI from MCLI is a RF & Microwave Circulator with Frequency 980 MHz to 2.05 GHz, Average Power Forward 50 W, Peak Power 100 W, Insertion Loss 0.6 dB, Isolation 17 dB. Tags: Coaxial Circulator. More details for CS-2-1/NMI can be seen below.