The 994-037405-008 from M2 Global Technology is a RF & Microwave Isolator with Frequency 10.7 to 12.8 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 994-037405-008 can be seen below.