The RMDU.880-960Nf from Response Microwave Inc is a RF Duplexer with Frequency 880 to 915 MHz (UL) / 925 to 960 MHz (DL), Band 1 880 to 915MHz(UL), Band 2 925 to 960 MHz(DL), Power 50 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for RMDU.880-960Nf can be seen below.