The SK4-5536536535-1515-R1-M from ERAVANT is a Waveguide Switch with Frequency 55 to 65 GHz, Power dBm 20 to 23 dBm, Power Watts 0.1 to 0.2 W, Insertion Loss 6.5 dB, Isolation 35 dB. Tags: Solid State. More details for SK4-5536536535-1515-R1-M can be seen below.