The 991-140155-091 from M2 Global Technology is a RF & Microwave Isolator with Frequency 14 to 15.5 GHz, Average Power Forward 3 W, Average Power Reverse 3 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-140155-091 can be seen below.