The VMDC-122127 from VidaRF is a RF & Microwave Circulator with Frequency 12.20 to 12.75 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-in Circulator. More details for VMDC-122127 can be seen below.