The VFDI-5459 from VidaRF is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power Forward 1 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-In, Drop-In Isolator. More details for VFDI-5459 can be seen below.