The PE11S3905 from Pasternack Enterprises Inc is a Frequency Synthesizer with Frequency 24 to 27 GHz, Step Size 1 to 40 MHz, Output Power 17 dBm, Current 470 mA, Phase Noise -75 dBc/Hz. Tags: Module with Connectors, PLL Frequency Synthesizer. More details for PE11S3905 can be seen below.