The RFLI-601A-5 from RF-Lambda is a RF & Microwave Isolator with Frequency 12 to 18 GHz, Bandwidth 1000 MHz, Average Power Forward 10 W, Average Power Reverse 2 W, Insertion Loss 0.4 dB. Tags: Module with Connector, Coaxial Isolator. More details for RFLI-601A-5 can be seen below.