The QCI1523C from Qualwave is a RF & Microwave Isolator with Frequency 3600 to 7200 MHz, Bandwidth 1400 MHz, Average Power Forward 60 W, Average Power Reverse 10 W, Insertion Loss 0.40 to 0.50 dB. Tags: Module with Connector, Coaxial Isolator. More details for QCI1523C can be seen below.