The INA-2733 from Stellant Systems is a RF & Microwave Isolator with Frequency 2.7 to 3.7 GHz, Insertion Loss 0.4 to 0.5 dB, Isolation 20 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for INA-2733 can be seen below.