The C9ZK1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 9.9 to 10.7 GHz, Average Power 50 W, Average Power Forward 50 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Microstrip, Microstrip Isolator. More details for C9ZK1 can be seen below.