The NDI-2040 from Stellant Systems is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Average Power Forward 1 W, Peak Power Reverse 1 W, Insertion Loss 0.4 to 0.5 dB, Isolation 17 to 20 dB. Tags: Drop-In, Drop-In Isolator. More details for NDI-2040 can be seen below.