Power-One, Inc. introduces its SFP450-12BG, a 450 W, hot-swap, AC/DC front-end. This I2 C compatible power supply uses advanced topologies and thermal management techniques to deliver 12 VDC at 36.6 A with efficiencies exceeding 89% and a power density of 9W/in3. The I2 C interface offers a range of monitoring and control capabilities. Static information includes serial number, part number and place/date of manufacture. Real time data includes AC input, output voltage and current levels, fan speed and over temperature alarms. Remotely-controllable performance attributes include unit enable, output voltage value and fan speed. Additional performance features include operation over a wide 90 VAC to 264 VAC input range, a 3.3 V at 3 A standby output, and the capability to provide 900 W through parallel operation.