The 994-037503-011 from M2 Global Technology is a RF & Microwave Isolator with Frequency 12.3 to 13.6 GHz, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for 994-037503-011 can be seen below.