The VCI-1721 from VidaRF is a RF & Microwave Isolator with Frequency 1.7 to 2.1 GHz, Average Power Forward 65 W, Insertion Loss 0.5 dB, Isolation 21 dB, Operating Temperature 0 to 50 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for VCI-1721 can be seen below.