The VCI-270310 from VidaRF is a RF & Microwave Isolator with Frequency 27 to 31 GHz, Average Power Forward 25 W, Insertion Loss 1.1 dB, Isolation 18 dB, Operating Temperature -10 to 50 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for VCI-270310 can be seen below.