The SMX-C9 from Synergy Microwave Corporation is a Frequency Multiplier with Output Frequency 1 to 4 GHz, Input Power 10 to 16 dB, Harmonics 10 to 20 dBc, Conversion Loss 12 to 17 dB, Frequnecy 500 MHz to 2 GHz. Tags: Surface Mount, Frequency Doubler. More details for SMX-C9 can be seen below.