Rosewill Computer Modular Power Supply, Modular 80 PLUS Gold 750W PSU for PC/Desktop/ Gaming Computer, Silent 135mm Fan, ATX12V/EPS12V, SLI & CrossFire Ready - CAPSTONE 750 80 PLUS GOLD: The Capstone 750 Watt power supply is 80 PLUS Gold certified and delivers up to 90% efficient performance under typical loads. This high form of efficiency saves energy, reduces heat in your system, decreases fan noise and prolongs PSU life span so you can maximize your gaming activity 5 YEAR WARRANTY: The Capstone gaming PSU is backed by 5 years of warranty. Your power supply unit will operate according to its technical specifications within intended operating environments for the length of the warranty period SILENT OPERATION FAN: With Auto Fan Speed Control, the PSUs 135mm fan turns slowly at low temperatures, reducing power consumption and fan noise to near silence. When temperatures increase, fan speed will also increase. This decreases the odds of over-heating, extends the fans life span and reduces energy consumption MODULAR PSU: A semi-modular PSU design comes with only the essential cables pre-attached. This allows for some customization of additional cables, plus reduced clutter and better airflow compared to non-modular PSUs within your computer case or system