The MM-RSW-020040-SP4T from Mountain Microwave Technology is a RF Switch with Frequency 2 to 4 GHz, Insertion Loss 1.2 dB, Isolation 65 dB, Power 27 dBm, Power 0.5 W. Tags: Module with Connectors, Solid State. More details for MM-RSW-020040-SP4T can be seen below.