The S4TA-005265E4B from Corech Microwave is a RF Switch with Frequency 0.5 to 26.5 GHz, Insertion Loss 4.2 to 4.7 dB, Isolation 65 to 70 dB, Power 23.01 dBm, Power 0.2 W. Tags: Module with Connectors, Solid State. More details for S4TA-005265E4B can be seen below.