The RFSL8977 from RF-CI is a RF & Microwave Isolator with Frequency 7 to 17 GHz, Average Power Forward 25 W, Average Power Reverse 5 W, Peak Power Forward 0.25 kW, Insertion Loss 0.9 to 1 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL8977 can be seen below.