The SLX-K3 from Synergy Microwave Corporation is a Frequency Multiplier with Output Frequency 2 MHz to 1 GHz, Input Power 4 to 10 dBm, Harmonics 15 to 40 dBc, Conversion Loss 13.5 to 16.5 dB, Frequnecy 1 to 500 MHz. Tags: Surface Mount, Frequency Doubler. More details for SLX-K3 can be seen below.