Product Detail Enhanced Flexible Modular Cable Design allows you to use only those cables needed & saves you space inside your case 80 Plus Certified for 80%+ Energy Efficiency at 20%, 50% and 100% Load Condition for less Heat Generation and Lower Energy Bill Advanced circuitry design that automatically enables power sharing between the triple +12V rails in an event of overload on any single +12V rail Over Current / Voltage / Power Protection, Under Voltage and Short Circuit Protection provides Maximum Safety for your critical system components 99% Active Power Factor Correction provides clean and reliable power to your system . The "Corsair CMPSU-520HX 520-Watt HX Professional Series 80 Plus Certified Power Supply compatible with Core i7 and Core i5" is best product for you. We recommended Corsair CMPSU-520HX 520-Watt HX Professional Series 80 Plus Certified Power Supply compatible with Core i7 and Core i5