The QT4100 from Q-Tech Corporation is a OCXO with Frequency 1 to 125 MHz, Supply Voltage 3.3 to 15 V, Output Power 3 dBm (Sinewave), Load Capacitance 15 pF, Output Load 50 Ohms (Sinewave), 10kO / 15pF(HCMOS). Tags: Module with Connectors, Low G-Sensitivity. More details for QT4100 can be seen below.