The AM2575-2680D1105 from Anatech Electronics is a RF Duplexer with Frequency 2.56 to 2.59 GHz / 2.67 to 2.69 GHz, Band 1 2560 to 2590 MHz, Band 2 2670 to 2690 MHz, Power 3 W, Insertion Loss 2 dB. Tags: Surface Mount, Ceramic. More details for AM2575-2680D1105 can be seen below.