The 3A4NPE from Renaissance Electronics Corporation is a RF & Microwave Isolator with Frequency 2.2 to 2.4 GHz, Average Power Forward 30 W, Average Power Reverse 30 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for 3A4NPE can be seen below.