The QCI10458E from Qualwave is a RF & Microwave Isolator with Frequency 180 to 860 MHz, Bandwidth 60 MHz, Average Power Forward 300 W, Average Power Reverse 10 to 100 W, Insertion Loss 0.6 to 1 dB. Tags: Module with Connector, Coaxial Isolator. More details for QCI10458E can be seen below.