The JI2C5400T5900N1 from JQL Electronics is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 50 dB. Tags: Module with Connector, Coaxial Isolator. More details for JI2C5400T5900N1 can be seen below.