The G12 GC Series is available in the standard ATX Form Factor and in wattages that are most common for a PC system. The Seasonic G12 GC-Series achieves 80 PLUS Gold standard of providing at least 87 , 90 and 87 power usage efficiency at 20 , 50 and 100 operating loads, respectively. This efficiency, combined with Active Power Factor Correction, enables the G12 GC series power supplies to lessen energy waste, which translates into savings on the costs of energy costs for its users. In addition to being greatly efficient, the G12 GC units utilize the LLC resonant converter design, and the industrys leading Smart and Silent Fan Control (S2FC). 80 PLUS GOLD The G12 GC achieves 80 PLUS Gold certification with its 90 efficiency at 50 system load. S2FC - SMART AND SILENT FAN CONTROL The intelligent thermal circuit feature is designed to find the optimal balance between the necessity to cool the components and the need to run the power supply in the most silent manner possible. Main Features 80 PLUS Gold certified Fixed cables Tight Voltage Regulation S2FC - Smart and Silent Fan Control 5 years warranty Interfaces/Ports SATA Connectors6 CPU Connectors1 x 8-pin EPS1 x 4 4-pin EPS PCI Connectors4 x 6 2-pin PCIe Motherboard Connectors1 x 24-pin ATX Molex Connectors3 Compliance Standards80 PLUS Gold CertifiedcTUVus, TUV, CB, CCC, BSMI, CE, FCCEnergy Star, RoHS, WEEE, ErP Lot 6, REACH SafetyOPP, OVP, OCP, SCP Electrical Voltage100 ~ 240 V AC Power850 W Frequency Range50 ~ 60 Hz Power CordYes Environmental Operating Temperature0 ~ 50C Physical Form FactorATX Power Supply Case ColourBlack In The BoxPower SupplyPower CableScrewsInstallation Guide Width150 mm Depth140 mm Height86 mm Warranty Warranty5 Years Key Features Modular CablesNo 80Plus Rated80 Plus Gold PSU Form FactorATX PCI-E Connectors4 Motherboard Power Connectors4 4 8-Pin PCI-E Pin Type6 2-Pin PSU Depth140 mm