The 2A4NEX-S from Renaissance Electronics Corporation is a Space Qualified Isolator with Frequency 2.2 to 2.3 GHz, Average Power Forward 75 W, Average Power Reverse 1 W, Peak Power Forward 100 W, Insertion Loss 0.6 dB. Tags: Module with Connectors, Coaxial Isolator. More details for 2A4NEX-S can be seen below.