The KFSW300600-100 from Synergy Microwave Corporation is a Frequency Synthesizer with Frequency 3 to 6 GHz, Step Size 1000 KHz, Reference Frequency 10 MHz, Output Power -3 dBm, Supply Voltage 5 to 20 V. Tags: Module with Connectors, PLL Frequency Synthesizer. More details for KFSW300600-100 can be seen below.