Seasonic Unveils its High-End SS-1200XP3 PSU

The range-topping Seasonic SS-1200XP3 offers a capacity of 1200 W, a fully modular design, and an 80 Plus Platinum certification that provides 92 percent efficiency at 115 Vac and 50 percent efficiency while under load.

The SS-1200XP3 also shares a number of features with other P-series PSUs including a semi-fanless operation whereby the Sanyo Denki San Ace 9S cooling fan is only engaged at loads of 30 percent or greater and 105°C rated Japanese capacitors.

Though this hasn’t been confirmed, we expect the SS-1200XP3 to contain a quad-rail design that is similar to its predecessors. We're not entirely sure why Seasonic has continued to advertise the P-Series as only having a single +12V rail.

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  • funguseater
    "50 percent efficiency while under load."

    typo?
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  • stonedatheist
    "We're not entirely sure why Seasonic has continued to advertise the P-Series as only having a single +12V rail."

    Maybe it's because they do in fact only have a single +12v rail. I personally own the SeaSonic Platinum Platinum-860 and it says right on its sticker that it has a 71A +12V rail. Even Seasonic's website lists all Platinum PSUs as having single +12v rails; the 400W has 33A, 460W has 38A, 520W has 43A, 660W has 55A, 760W has 63A, 860W has 71A, 1kW has 83A.

    There is a good chance that this new model could break the trend though because it is the highest power model yet and having multi +12v rails is nice for that little extra protection.
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  • DarkSable
    ...Because what seasonic really needed was even MORE high-quality parts.
    Y'know, because it's not like they already make some of the best power supplies out there.
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