The SSTA-020040E1B from Corech Microwave is a RF Switch with Frequency 2 to 4 GHz, Insertion Loss 0.9 to 1.2 dB, Isolation 80 to 90 dB, Power 20 dBm, Power 0.1 W. Tags: Module with Connectors, Solid State. More details for SSTA-020040E1B can be seen below.