The Cd2000E from Orion Microwave Inc. is a RF & Microwave Circulator with Frequency 1.8 to 2.2 GHz, Average Power Forward 200 W, Average Power Reverse 200 W, Peak Power 1000 W, Insertion Loss 0.3 dB. Tags: Drop-in Circulator. More details for Cd2000E can be seen below.