The HX-T-4374-20-10 from A-Info is a RF & Microwave Circulator with Frequency 4.3 to 7.4 GHz, Bandwidth 600 MHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.3 dB. Tags: Coaxial Circulator. More details for HX-T-4374-20-10 can be seen below.