The DBIS1804000800C from Qotana is a RF & Microwave Isolator with Frequency 4 to 8 GHz, Average Power Forward 10 W, Average Power Reverse 2 W, Insertion Loss 0.4 to 0.5 dB, Isolation 18 to 19 dB. Tags: Module with Connector, Coaxial Isolator. More details for DBIS1804000800C can be seen below.