The MD3550B from Advanced Microwave Inc is a Frequency Multiplier with Input Frequency 3 to 8 GHz, Output Frequency 6 to 16 GHz, Input Power 10 to 13 dBm, Output Power -3 to 2 dBm, Harmonics -45 dBc(Third Harmonic). Tags: Module with Connectors. More details for MD3550B can be seen below.