The QCC1523C from Qualwave is a RF & Microwave Circulator with Frequency 3600 to 7200 MHz, Bandwidth 1400 MHz, Average Power Forward 60 W, Insertion Loss 0.4 to 0.5 dB, Isolation 18 to 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for QCC1523C can be seen below.