The ACI-20140 from Atlantic Microwave is a RF & Microwave Isolator with Frequency 5.8 to 6.5 GHz, Average Power Forward 5 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -35 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for ACI-20140 can be seen below.