The ACI-20300 from Atlantic Microwave is a RF & Microwave Isolator with Frequency 21.2 to 23.6 GHz, Average Power Forward 5 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -30 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for ACI-20300 can be seen below.