The ACI-20040 from Atlantic Microwave is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Average Power Forward 10 W, Insertion Loss 0.8 dB, Isolation 15 dB, Operating Temperature 0 to 50 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for ACI-20040 can be seen below.