The TG501B / 2-6GHz from Sainty-Tech Communications Limited is a RF & Microwave Isolator with Frequency 2 to 6 GHz, Average Power Reverse 10 W (Load), Insertion Loss 1.2 dB, Isolation 15 dB, Operating Temperature 0 to 60 Degree C. Tags: Coaxial Isolator. More details for TG501B / 2-6GHz can be seen below.