The DBSR0400020300B from Qotana is a RF Switch with Frequency 20 MHz to 3 GHz, Insertion Loss 2.4 dB, Isolation 60 dB, Power 30 to 47 dBm, Power 1 to 50 W. Tags: Module with Connectors, Solid State. More details for DBSR0400020300B can be seen below.