The RFSL8987 from RF-CI is a RF & Microwave Isolator with Frequency 2.7 to 6.2 GHz, Average Power Forward 50 W, Average Power Reverse 20 W, Peak Power Forward 0.5 kW, Insertion Loss 0.6 to 0.8 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFSL8987 can be seen below.