The Voltas 500Watt is ideal for PC builders seeking power, reliability and efficiency, ATX12V 2, 2 circuit delivers clean and stable power with increased amperage on the 12-volt lines, Low turbulence 12cm fan draws cooler air into the case with minimum noise, Great for quad-core PCs, ATX12V v2, 2 compliant, +3, 3V and +5V combined load 229W, +12V combined load 192W, Energy efficient (>73% @ typical load), Ultra quiet 12cm fan, Protection against over power, over voltage and short circuit, Case color: Gray, ATX compliance: ATX12V v2, 2, +12V rails: 2, Power provided: 500W, Peripheral connectors: 4 x Peripherals (4pin); 2 x SATA (15pin); 1 x Floppy drive (4pin), Motherboard connectors: 1 x Main connector (20+4pin); 1 x 12V+ P4 (4pin), Input Voltage: Universal 100 ~ 240V, Efficiency: > 73% @ 115V (Typical load), Protections: Over Voltage, Over Current and Short Circuit, Certification: CE and FCC, MTBF > 100,000 hours, Dimensions: 3, 4"" x 5, 9"" x 5, 5"", Weight: 3, 0 lbs, SKU: EGLTC07