The DeepCool PK-D series power supply offers reliable 80 PLUS Bronze efficiency for computer system builds thanks to stability and low noise performance. The PK-D series is 80 PLUS Bronze certified, delivers up to 85% efficiency at normal loads, and reduces unnecessary heat generation while boosting energy efficiency. The +3.3V and +5V rails now include a highly efficient DC-DC board that helps with tighter voltage regulation and improves system compatibility for components of the next generation. STRONG AND DURABLE engineered to provide a constant, uninterrupted power output even at temperatures as high as 40°C and altitudes as high as 5000m. It is designed to be very energy-efficient in power standby mode and to comply with international ErP Lot 6 regulations, which lowers overall energy consumption. The DeepCool PK450D comes with a 05-year warranty.