The CMIG305 from Quantic Corry is a RF & Microwave Isolator with Frequency 1.8 to 4.2 GHz, Bandwidth 200 MHz, Average Power Forward 10/50/100 W, Average Power Reverse 1 W, Insertion Loss 0.3 dB. Tags: Module with Connector, Coaxial Isolator. More details for CMIG305 can be seen below.