80 PLUS certified, with 80% (115VAC) / 80% (220VAC-240VAC) efficiency or higher under typical loads Quiet and Intelligent Auto Fan for near-silent operation Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection) Active Power Factor Correction (PFC) 3 Year Warranty