Thermaltake Smart 500W 80+ White PSU 120mm Fan PS-SPD-0500NPCWUS-WIncorporating various high-quality components, the smart series - models are Rated from 500W to 700W - saves energy through its high efficiency of up to 86% and accommodates any mainstream build with the most demanding requirements. An embedded intelligent cooling fan delivers excellent Airflow at an exceptionally low noise level. Additionally, the single +12V rail design enables non-stop usage with stable and reliable performance. Smart Series adopt 120mm cooling fan delivers excellent Airflow at an exceptionally low noise level. Smart Series saves energy through its high energy efficiency poundsProductdimensions4.0 x 7.0 x 8.9 inchesVisit our store for more great deals!Thank you!