The ETCE0255-X from Star Microwave is a RF & Microwave Circulator with Frequency 2.4 to 2.7 GHz, Average Power Forward 250 W, Average Power Reverse 100 W, Insertion Loss 0.18 dB, Isolation 21 dB. Tags: Drop-in Circulator. More details for ETCE0255-X can be seen below.