The 991-960123-651 from M2 Global Technology is a RF & Microwave Isolator with Frequency 960 MHz to 1.23 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Insertion Loss 0.6 dB, Isolation 15 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-960123-651 can be seen below.