The ADC485DD from ADMOTECH is a RF & Microwave Circulator with Frequency 4.8 to 4.9 GHz, Average Power Forward 60 W, Average Power Reverse 50 W, Insertion Loss 0.35 to 0.5 dB, Isolation 19 to 21 dB. Tags: Drop-in Circulator. More details for ADC485DD can be seen below.