Seasonic built this AC to DC open frame power supply series with active power factor correction and no load power consumption of less than 0.5 Watts. The unit’s working temperature is rated between 0 °C and 50 °C and highly reliable Japanese capacitors ensure long-term reliability. These power supplies have built-in Class B EMI filter and they are protected against over voltage, over power and short circuit incidents. Efficiency is  87 %. Universal AC input and fully regulated output complete the package to make this unit an optimal solution for PoE (power over ethernet) systems and solutions.