The QCC2528X from Qualwave is a RF & Microwave Circulator with Frequency 1200 to 2500 MHz, Bandwidth 200 MHz, Average Power Forward 100 W, Insertion Loss 0.4 to 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for QCC2528X can be seen below.