The 921-2535-2655 from Innowave RF is a RF Duplexer with Frequency 2620 to 2690 MHz / 2500 to 2570 MHz, Band 1 2620 to 2690 MHz, Band 2 2500 to 2570 MHz, Power 250 W, Insertion Loss 0.35 dB. Tags: Module with Connectors. More details for 921-2535-2655 can be seen below.