Seasonic X-Series 660W Power Supply Review

Review Score:
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Over the last couple of months we have looked at the excellent X-Series 850W and 1250W power supplies – they both earned our highest awards. Today we look at the more affordable 660W version, a modular design which has achieved 80 Plus Gold Certification. This range of power supplies has proven popular with the enthusiast audience as they are a ‘no-compromise’ design incorporating high grade Japanese capacitors and class leading standards of build quality.

In a similar fashion to the other models we have reviewed, the 660W version adopts a “Hybrid Silent Fan Control” design, which offers three distinct operation modes, fanless mode, silent mode, and cooling mode. The X Series automatically adjusts fan mode and speed according to the ambient temperature level. This brand new design not only optimizes heat dissipation, but also prolongs lifespan of the system by reducing unnecessary fan rotation.

Special Features -

  • 80PLUS® Gold Certified Super High Efficiency
  • Full Modular Cabling Design
  • Patented DC Connector Module with Integrated VRM [Voltage Regulator Module]
  • DC to DC Converter Design
  • Seasonic Hybrid Silent Fan Control
  • Sanyo Denki San Ace Silent Fan
  • Conductive Polymer Aluminum Solid Capacitors
  • Highly Reliable 105℃ Japanese Brand Capacitors
  • Tight Voltage Regulation [±3%]
  • Active Power Factor Correction [99% PF Typical]
  • High +12V Output
  • High Current Gold Plated Terminals
  • Dual Sided PCB Layout
  • Ultra Ventilation [Honeycomb Structure]
  • Multi-GPU Technologies Supported
  • All-in-One DC Cabling Design
  • Easy Swap Connector
  • Universal AC Input [Full Range]
  • 5 Years Warranty
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Rating: 5.0/5 (1 vote cast)
Seasonic X-Series 660W Power Supply Review, 5.0 out of 5 based on 1 rating
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3 Comments
  • Manucuna
    October 30, 2012
    #1
    VA:R_U [1.9.22_1171]
    Rating: 0.0/5 (0 votes cast)

    Good product and good review. I like their power supplies but where I live they always are very very expensive.

    VA:R_U [1.9.22_1171]
    Rating: 0 (from 0 votes)
  • Xtreme
    October 30, 2012
    #2
    VA:R_U [1.9.22_1171]
    Rating: 0.0/5 (0 votes cast)

    When is the 650W version out? thats interesting. any improvements you know over this 660W?

    VA:R_U [1.9.22_1171]
    Rating: 0 (from 0 votes)
  • WillRock
    November 4, 2012
    #3
    VA:R_U [1.9.22_1171]
    Rating: 0.0/5 (0 votes cast)

    No new 650W version, the new Platinum one is also 660W. It has been out on a Egg for a couple weeks:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151121

    It’s based on a new platform (similar to the Platinum 860 at a lower wattage). Expected to be better built and better performing.

    VA:R_U [1.9.22_1171]
    Rating: 0 (from 0 votes)
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