Corsair brings to you efficient power supply unit that consumes less power. If you are building system for your home or office system, then the Corsair VS-450 CP-9020009-UK 450 Watts PSU is ideal. The power supply unit of Cosair delivers a guaranteed 450 Watts of continuous power and protects from uneven power delivery as it has 0.99 Active Power Factor Correction. The Corsair VS450 produces low noise and high efficiency and offers up to 80% efficiency. Â This power supply unit generate less heat for your PC system, thus saving your electricity bills. The black powder-coated enclosure and the black-sleeved cables give your system a polished look.