The SK4-6937738030-1212-R1-M from ERAVANT is a Waveguide Switch with Frequency 69 to 77 GHz, Power dBm 20 to 23 dBm, Power Watts 0.1 to 0.2 W, Insertion Loss 8 dB, Isolation 30 dB. Tags: Solid State. More details for SK4-6937738030-1212-R1-M can be seen below.