The MMC-SP4T-DC18-60 from Mesa Microwave is a RF Switch with Frequency DC to 18 GHz, Insertion Loss 0.5 dB, Isolation 60 to 90 dB, Power 53.01 dBm, Power 200 W. Tags: Module with Connectors, Solid State. More details for MMC-SP4T-DC18-60 can be seen below.