The ASPOWER R2A DV0550-N is a high-quality, 550-watt redundant 2U server power supply with 80 PLUS Gold certification and wide range input. It offers automatic fan control and many protection functions, such as protection against current peaks (OCP), over voltage protection (OVP), overload protection (OLP / OPP), Short Circuit Protection (SCP) and over-temperature protection (OTP).