The Kolink SFX range of PSUs are available in 250W, 350W and 450W varities. Each unit is capable of reaching 80+ Bronze/80 Plus 230V EU levels of efficiency - 85% at 50%, 82% at 20%/100%. Each unit meets ErP Lot 2013, with < 0.5W consumed on standby. The PSU uses a single 12V rail to provide a stable amount of power where needed. The fan is 80mm in size, and is profiled for quiet usage at all loads!