Larger 12cm Fan for efficient cooling Supports the latest ATX 12V Intel & AMD Platforms Smart Fan Control makes it super silent All-Round Protection: OVP (Over Voltage Protection) UVP (Under Voltage Protection) OPP (Over Power Protection) SCP (Short Circuit Protection) Keeps noise levels under 22dBA High efficiency :> 75% 100% Tested for Hi-Port Chroma, Burn-in Function, Vibration Levels & Leakage current Power Cord Included Support SATA Peripherals Input Voltage Range: 170- 270V Input Frequency: 50 -60 Hz Increased + 12V DC Output Capability SATA HDD X 3, IDE HDDX 1 , 20+4 PIN X1 , 12V P4