The T5XL1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 5.9 to 6.5 GHz, Average Power 2 W, Average Power Forward 2 W, Insertion Loss 0.75 dB, Isolation 17 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T5XL1 can be seen below.