The QSI10 from Qualwave is a RF & Microwave Isolator with Frequency 2515 to 5300 MHz, Bandwidth 300 MHz, Average Power Forward 30 W, Average Power Reverse 5 to 10 W, Insertion Loss 0.4 to 0.6 dB. Tags: Surface Mount, Surface Mount Isolator. More details for QSI10 can be seen below.