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Zalman 400W Quiet Power Supply



  • Model No.: ZM400B-APS
  • Maximum Power: 400W
  • Dimensions: 140 x 86 x 150mm (wxhxd)
  • Complies with Intel ATX12V ver 1.3


  • With the goal of enhancing the computing environment, all Zalman Tech products are noise-free. This product is a noise-free 300(400) W ATX (version 2.03) / ATX12V power supply supporting Intel Pentium 4 and AMD CPUs.
  • By implementing heat-sensor circuitry that controls the cooling fan's speed (rpm) in relation to the temperature within the power supply, noise has been greatly reduced. The graph linked on this website shows the CNPS characteristics of our product.
  • CNPS (Computer Noise Prevention System) refers to a system that reduces a conventional computer's noise (30dB or more) to an inaudible level (20dB or less). In order to create a true noise-free computer, Zalman's other noise-free products should be used together with this product.
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