The 991-800105-501 from M2 Global Technology is a RF & Microwave Isolator with Frequency 800 MHz to 1.05 GHz, Average Power Forward 100 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 15 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-800105-501 can be seen below.