Be Quiet! P4-450W

The Blackline series PSUs from BeQuiet are advertised as noiseless in the first place. Added that other products from this company include quiet fans, passive heatsinks for graphics cards and sound-absorbing pads, Zalman seems to have acquired a direct competitor…

The unit comes in an attractively-looking black box which besides the PSU proper contains a manual, a power cord, mounting screws and multicolored sticker braces for laying the cables neatly. These stickers look unusual, but frankly speaking the ordinary nylon braces are much handier.

The power supply isn’t just colored black – it carries a special shiny black coating. The user manual says this coating is an additional protection against EMI, but I think its serves aesthetic purposes more than protective ones.

The dimensions and the quality of the heatsinks impress. The thickness of their base is more than the ordinary 5-6 millimeters, and they split into a lot of thin ribs above.