The ADC505DD from ADMOTECH is a RF & Microwave Circulator with Frequency 4.95 to 5.15 GHz, Average Power Forward 60 W, Average Power Reverse 50 W, Insertion Loss 0.4 to 0.6 dB, Isolation 19 to 21 dB. Tags: Drop-in Circulator. More details for ADC505DD can be seen below.