The VBCC-2040 from VidaRF is a RF & Microwave Circulator with Frequency 2 to 4 GHz, Average Power Forward 250 W, Average Power Reverse 50 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Coaxial Circulator. More details for VBCC-2040 can be seen below.