The QDI1220D from Qualwave is a RF & Microwave Isolator with Frequency 5.1 to 7 GHz, Bandwidth 210 to 800 MHz, Average Power Forward 80 W, Average Power Reverse 10 W, Insertion Loss 0.30 to 0.50 dB. Tags: Drop-In, Drop-In Isolator. More details for QDI1220D can be seen below.