This 48V 2A power adapter is built with the latest power supply technologies and the quality components materials to enable high performance. High-frequency AC-to-DC flyback converter with green-mode power-saving operation enables high power density and lowest no-load power consumption for the 120v ac power supply to comply with global efficiency standards including DoE Level VI and EU CoC V5 Tier-2. The switching power supply 48v dc also provides excellent EMC performance. The 48v dc power supply features full protection to maximize the reliability. These features include internal OLP(Over Load Protection), OVP(Over Voltage Protection), output short-circuit protection. The AC power supply also incorporates a pair of U shaped internal heat sinks to achieve efficient natural convection cooling, enable higher operating temperatures and reliability (see our UL/TUV certification).