The 991-525585-901 from M2 Global Technology is a RF & Microwave Isolator with Frequency 5.25 to 5.85 GHz, Average Power Forward 50 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-525585-901 can be seen below.