Kingwin Lazer Platinum LZP-550 550W

  • Kingwin Lazer Platinum LZP-550 550W
Browse 6 reviews so far
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  • Solid Performance, 80 Plus Platinum Certification, Intelligent Fan Auto Control, Modular Outputs.
  • Ultra high efficiency, currently the most efficient unit we ever tested, All major rails are within 3% voltage regulation, Almost fanless, fan is off most of the time, Ripple/noise suppression is outstanding, Flat modular cables help with cable management
  • Unbelievably efficient, very low ripple and noise, better than 1% regulation on all main rails, goes fanless at low temps and even some higher temps.


  • High price, No MOV in the transient filtering stage, Small distance between SATA/peripheral connectors
  • High MSRP.

Expert reviews and ratings

By ThinkComputers on 100

The Kingwin Lazer Platinum 550W is a mighty impressive Power Supply. Its an elegant package that comes with a bevy of features, most notable of which is the rare 80 Plus Platinum certification, which ensures that you have one of the best...

By techPowerUp! on 95

Kingwin's LZP-550 surprised us with its outstanding results. Its efficiency is out of this world, voltage regulation was under 3% at all major rails, ripple/noise almost non-existant, the power supply runs fanless most of the time and on top of that...

By SilentPC Review on

The Kingwin Lazer Platinum LZP-550 power supply is unique in the marketplace today: It is not only the most energy efficient computer power supply, but also among the very quietest in any practical application. Its acoustic competitors are mostly a...

By PCPer on

The Kingwin Lazer Platinum Series LZP-550 is a very impressive power supply. It delivered the best efficiency numbers we have seen to date and easily met the new 80PLUS Platinum certification criteria. It also delivered very good voltage regulation...

By HardOCP on

The Kingwin LZP-550 is the first power supply we have reviewed that is advertised as being 80Plus Platinum certified and today not only was it platinum when it comes to efficiency it was absolute bank across the board. The only weak point of the unit...

By JonnyGuru on 90

It's always exciting when something new and awesome crosses my path, and Kingwin's entry into the new 80 Plus Platinum category certainly qualifies under both terms. While the MSRP is currently much too high to compete in the marketplace, the...