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Seasonic Platinum Series 660W Power Supply Review

Manufacturer: Seasonic

Final Thoughts and Conclusions

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Like all it’s X-Series predecessors, the new Seasonic Platinum 660W power supply incorporates significant advances in PC power supply design that result in excellent performance, high efficiency and the ability to operate in silent-fanless mode at lower power levels.  Add to that a 7-year warranty, a good assortment of all modular cables, tight voltage regulation, clean DC outputs and you have one very good power supply!  However, as you might expect, a premium Platinum efficiency certified PSU is going to be relatively expensive.

The Seasonic Platinum 660W power supply is currently selling for $149.99 USD (Newegg.com, December 2012).

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Strengths:
• Outstanding voltage regulation
• Excellent efficiency across a broad range of loads (80Plus Platinum certified)
• Very low AC ripple even at 100% load
• Silent, fanless operation at lower power levels
• Quiet operation at mid to upper power levels
• Single +12V output can deliver up to 55A/660W
• Four PCI-E connectors (6/8-pin) and two 4+4 pin/8-pin ATX/EPS
• 7-Year warranty
• Active PFC with universal AC input
• All modular, flat ribbon-style cables with gold-plated connectors

Minor Weaknesses:
• Platinum efficiency costs a little more

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Seasonic Platinum Series 660W PSU

I would like to thank our friends at Seasonic for sending us the Platinum 660W PSU to review – thank you!

January 25, 2013 | 02:51 PM - Posted by Anonymous (not verified)

F, bought the 1000watt version back in May and it came with the ugly colored modular cables.

May 1, 2013 | 08:42 PM - Posted by Anonymous (not verified)

hello there, I have a question, since you got that colored modular cables, did you report that to seasonic and did you make a request of being provided with black cables for it? just wondering because if I will be getting one, I might get colored cables too.

January 25, 2013 | 03:42 PM - Posted by Patrick (not verified)

Love me some Seasonic.

January 27, 2013 | 08:40 PM - Posted by pdjblum

Seasonic is always my first choice when I am in the market for a new psu. Not only are the psu's excellent, but so too is their customer service.

January 31, 2013 | 07:52 AM - Posted by SS (not verified)

Just got two of these and both of them had coils noise and one also coil whine. Sent them back, very disappointed. (Tested on several platforms and the noise was persistend, even on professional APC UPS)

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