The RFSL8979 from RF-CI is a RF & Microwave Isolator with Frequency 7.5 to 16 GHz, Average Power Forward 25 W, Average Power Reverse 5 W, Peak Power Forward 0.25 kW, Insertion Loss 0.7 to 0.8 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL8979 can be seen below.