The FMCR1007 from Fairview Microwave is a RF & Microwave Circulator with Frequency 4 to 8 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Peak Power 60 W, Insertion Loss 0.6 dB. Tags: Coaxial Circulator. More details for FMCR1007 can be seen below.