The 991-580650-201 from M2 Global Technology is a RF & Microwave Isolator with Frequency 5.8 to 6.5 GHz, Average Power Forward 50 W, Average Power Reverse 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for 991-580650-201 can be seen below.