The SMI-0810 from Sierra Microwave Technology is a RF & Microwave Isolator with Frequency 800 MHz to 1 GHz, Average Power Reverse 2 W, Insertion Loss 0.5 dB, Isolation 17 dB, Operating Temperature -30 to 60 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for SMI-0810 can be seen below.