The IMA440590UH from 3Rwave is a RF & Microwave Isolator with Frequency 4.4 to 5.85 GHz, Average Power Forward 50 W, Insertion Loss 0.4 to 0.6 dB, Isolation 18 to 20 dB, Return Loss 18 to 20 dB. Tags: Drop-In Isolator. More details for IMA440590UH can be seen below.