The VCI-127135 from VidaRF is a RF & Microwave Isolator with Frequency 12.75 to 13.5 GHz, Average Power Forward 25 W, Insertion Loss 0.35 dB, Isolation 23 dB, Operating Temperature -54 to 85 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for VCI-127135 can be seen below.