The DUP-1091-VE from Tamagawa Electronics Vietnam is a RF Duplexer with Frequency 880 to 915 MHz / 925 to 960 MHz, Band 1 880 to 915 MHz, Band 2 925 to 960 MHz, Power 80 W, Insertion Loss 0.7 to 1.5 dB. Tags: Module with Connectors. More details for DUP-1091-VE can be seen below.