The 2W8NAO from Renaissance Electronics Corporation is a RF & Microwave Isolator with Frequency 11.5 to 13.8 GHz, Average Power Forward 1 W, Insertion Loss 0.5 dB, Isolation 20 dB, Storage Temperature -40 to 85 Degree C. Tags: Microstrip Isolator. More details for 2W8NAO can be seen below.