The CC 1327 K aaa from TKI-Ferrit is a RF & Microwave Circulator with Frequency 1.3 to 2.7 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 1 dB, Isolation 15 dB. Tags: Module with Connectors, Coaxial Circulator. More details for CC 1327 K aaa can be seen below.