The USD008A from CTS Electronic Components is a RF Duplexer with Frequency 880 to 960 MHz, Band 1 925 to 960 MHz, Band 2 880 to 915 MHz, Power 6 to 60 W, Insertion Loss 2.6 to 2.6 dB. Tags: Ceramic, Surface Mount. More details for USD008A can be seen below.