The SR2123T01 from QUEST Microwave is a RF & Microwave Isolator with Frequency 21.2 to 23.6 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Insertion Loss 0.5 dB Max., Isolation 20 dB Min.. Tags: Module with Connector, Coaxial Isolator. More details for SR2123T01 can be seen below.