The RFSL8909 from RF-CI is a RF & Microwave Isolator with Frequency 3.5 to 7 GHz, Average Power Forward 30 W, Average Power Reverse 20 W, Peak Power Forward 0.5 kW, Insertion Loss 0.5 to 0.6 dB. Tags: Drop-In, Drop-In Isolator. More details for RFSL8909 can be seen below.