The AR133A-20 from AccuBeat is a Rubidium Oscillator with Frequency 10 MHz, Supply Voltage 12 to 15 V, Power Consumption 8.25 W (Steady State), 16 to 18 W (Warm-Up), Phase Noise -157 to -95 dBc/Hz, Short Term Stability 0.005 ppb. Tags: Module with Connector. More details for AR133A-20 can be seen below.