The JIC2800T2900SMSF1 from JQL Electronics is a RF & Microwave Isolator with Frequency 2.8 to 2.9 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.25 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for JIC2800T2900SMSF1 can be seen below.