The IMA540590HK from 3Rwave is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power Forward 30 W, Average Power Reverse 8 W, Insertion Loss 0.35 to 0.4 dB, Isolation 20 to 22 dB. Tags: Drop-In Isolator. More details for IMA540590HK can be seen below.