The AD2442-2557D470 from Anatech Electronics is a RF Duplexer with Frequency 2400 to 2485 MHz / 2515 to 2600 MHz, Band 1 2400 to 2485 MHz, Band 2 2515 to 2600 MHz, Insertion Loss 2 dB, Isolation 70 dB. Tags: Module with Connectors. More details for AD2442-2557D470 can be seen below.