The D1550L from Eclipse MDI is a Frequency Multiplier with Output Frequency 3 to 10 GHz, Input Power 11 to 13 dBm, Harmonics 23 to 30 dBc, Conversion Loss 11.0 - 12.5 dB, Frequnecy 1.5 to 5 GHz. Tags: Module with Connectors, Frequency Doubler. More details for D1550L can be seen below.