The CI-1088-409 from RF & Noise Components is a RF & Microwave Isolator with Frequency 960 MHz to 1.21 GHz, Average Power Forward 250 W, Average Power Reverse 100 W, Insertion Loss 0.35 to 0.45 dB, Isolation 20 to 23 dB. Tags: Module with Connector, Coaxial Isolator. More details for CI-1088-409 can be seen below.