Twins PRO 500W (Modular) FSP520-20RAB Features: ATX PS2 redundant size Efficiency ≧ 90% at typical load Quiet and long-lasting 40mm ball bearing fan Ribbon cables for th need of enthusiasts Powerful single +12V rail design All Japanese electrolytic capacitors Intel Latest CPU ready Full protections OCP, OVP, SCP, OPP, OTP, FFP, UVP Specifications: Model FSP520-20RAB Total Power 520W AC Input 100-240Vac~ 8-4A 50-60Hz DC Output / Max Output Current +12V / 43.3A +5Vsb / 3.0A