The QCI5258E from Qualwave is a RF & Microwave Isolator with Frequency 160 to 330 MHz, Bandwidth 70 MHz, Average Power Forward 500 W, Average Power Reverse 10 to 100 W, Insertion Loss 0.20 to 0.70 dB. Tags: Module with Connector, Coaxial Isolator. More details for QCI5258E can be seen below.