The MMC-SP4T-0520-55 from Mesa Microwave is a RF Switch with Frequency 500 MHz to 2 GHz, Insertion Loss 1.3 dB, Isolation 55 dB, Power 30 to 47 dBm, Power 1 to 50 W. Tags: Module with Connectors, Solid State. More details for MMC-SP4T-0520-55 can be seen below.