Features: Compliant with 80 plus standard-efficiency 80%+ Dual switch forward converter design Supports intel core 2 i5 and i7 and amd phenom and athlon cpus Optional for case coating, 24-pin cable shield and pci-e connector Output power: 400w Power: 450w (maximum) Efficiency: 80% at 115/230v ac Ovp, ocp, otp, scp, short-circuit protections Low-ripple and noise 100% ate testing, 100% burn-in testing General specifications: Hold-up time 17ms at maximum load 115v ac/60hz or 230v/50hz Dimensions: 150 x 140 x 86mm Mtbf 100k hours Output rise time: 0.2 to 20 milliseconds Pg signal rise time: 1ms (maximum) Environment specifications: Operating temperatures: 0 to 50¡ãc Storage temperatures: -40 to 70¡ãc Dimensions: 150 x 140 x 86mm Mtbf 100k hours Output rise time: 0.2 to 20 milliseconds