Sea Sonic Electronics Power Supply 500W 80PLUS Gold EPS12V 1U Low THD Retail SS-500L1U Brand:SeaSonic Model:SS-500L1U Features:Switch Mode Power Supply, Intel EPS 12V, Active PFCConnectors: Customized modular cablesLine regulation: +/-1% typicalLoad regulation: +/-5% typicalCross regulation: +/-5% typicalRipple / noise: 1%Power Factor Correction: Active PFC 99% typicalDC to DC converter designHigh efficiency and reliabilityLow THDLow ripple & noiseSuper low noise fan control100% hi-pot test100% burn in, high temperature cycled on/off. Dimensions:L235 x W100 x H40mm (9.3" x 3.9" x 1.6") Maximum Power:500W