Earthwatts Gold Pro 550WThe Earthwatts Gold Pro Series Features High Performance With An 80 Plus Gold Rating Delivering Up To 92% Efficiency And Reducing Your Electricity Bill. Featuring Hybrid Modular Cabling A Whisper-Quiet 120Mm Fan Controlled By Antec's Renowned Thermal Manager And Circuitshield Industrial Grade Protection-All Backed By Our Seven Year Antec Quality Warranty The Earthwatts Gold Pro Series Is The Power Supply Builders Choose For A Stable Quiet And Efficient System.Key Features- 550W Continuous Power - Guaranteed 550W Of Continuous Power From Antec- 80 Plus Gold Certified - Up To 92% Efficient To Reduce Your Electricity Bill- Aq7 - Antec Quality 7 Year Warranty And Lifetime Global 24/7 Support- 120Mm Silence: Whisper-Quiet High-Quality Fan With Long Lifetime- Semi-Modular Cable Management: Improves Airflow And Reduces Clutter- 99% +12V Output For Maximum Cpu & Gpu Support- Japanese Heavy-Duty Caps: High-Performance Capacitors Ensure Dc Stability And Regulation- 2 X Pci-E Connectors For Multiple Gpu Support- Atx12v 2.4: Engineered According To The Newest Psu Guideline And Compatible With The Latest Cpu Generation- Phasewave Design: A Server-Class Full-Bridge Llc Design With A Synchronous Rectification Based On A Dc-Dc Topology- Erp Lot 6 2016 Compliant To The Toughest Energy Standard Available- Circuitshield: Full Suite Of Industrial Grade Protections.ModelEa550g ProWattage550WTypeAtx 12V 2.4ModularSemi ModularInput Voltage100-240 VacInput Current8A-4AInput Frequency50Hz-60HzPfcActive Pfc (>0.9 Typical)Power Good Signal100-500MsEfficiency92% TypicallyCertification80 Plus Gold CertifiedProtectionOcp/Ovp/Uvp/Scp/Opp/Otp/Sip/NloCooling120Mm Silence FanConnections1 X 24-Pin Mbu (600Mm)1 X 4+4 Pin Cpu (650Mm)2 X 6+2 Pin Peg (650Mm + 150Mm)6 X Sata 3 X MolexRegulatoryCtuvus/Tuv/Cb/Rcm/Ce/Eac/Ccc/Bsmi/FccDimensions ( W X H X D )140 X 86 X 150MmWeightNet: 1.94KgsGross: 2.92Kgs