The 0270CSS from Nova Microwave is a RF & Microwave Circulator with Frequency 2.5 to 2.9 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Circulator. More details for 0270CSS can be seen below.