The RFSP4T18EMA from RF-Lambda is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.2 to 0.5 dB, Isolation 60 to 90 dB, Power 33.01 dBm, Power 2 W. Tags: Module with Connectors, Electro-Mechanical. More details for RFSP4T18EMA can be seen below.