The SK4-1832735060-KFKF-A3 from ERAVANT is a RF Switch with Frequency 18 to 26.5 GHz, Insertion Loss 5 dB, Isolation 60 dB, Power 20 dBm (Operational) to 27 dBm (Damage), Power 0.1 to 0.5 W. Tags: Module with Connectors, Solid State. More details for SK4-1832735060-KFKF-A3 can be seen below.