The SM4450T01 from QUEST Microwave is a RF & Microwave Isolator with Frequency 4.4 to 5 GHz, Average Power Forward 10 W, Average Power Reverse 2 W, Insertion Loss 0.3 dB Max., Isolation 23 dB Min.. Tags: Module with Connector, Coaxial Isolator. More details for SM4450T01 can be seen below.