The RFE-2017721-X from RFE is a Voltage Controlled Oscillator with Frequency 8 to 9.5 GHz, Power 10 to 14 dBm, Tuning Voltage 1 to 18 V, Phase Noise -90 dBc/Hz@100 kHz, Phase Noise dBc/Hz @100kHz -90 dBc/Hz@100 kHz. Tags: Surface Mount, Module with Connectors, Drop In. More details for RFE-2017721-X can be seen below.