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Seasonic X-Series XM2-1250 Power Supply Review

Manufacturer: Seasonic

Specifications and Packaging

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The Seasonic X-Series XM2-1250 power supply is rated for a combined, continuous output power of up to 1250 watts (up to 50°C) and comes with all modular cables.  The PSU includes universal AC line input (automatically adjusts to the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.  The XM2-1250 features a single +12V rail that can deliver up to 104A (1248W) of power. The X-Series XM2-1250 is also ErP Lot 6 2013 compliant and Intel Haswell processor ready.

Specifications from the Seasonic web site:

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Dimensions: 190 x 150 x 86mm (D x W x H)

Packaging and Parts

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The Seasonic X-Series XM2-1250 power supply arrived securely packed inside a standard retail box that highlights the unit's main features and specifications.  

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Like all premium Seasonic power supplies, the XM2-1250 is nicely protected inside a black cloth bag.

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In addition to the power supply the package includes a heavy duty power cord, mounting screws, Seasonic name badge, a multi-language Owner’s Manual, Warranty card, Velcro cable ties, wire ties, and a black and gold nylon pouch containing the modular cables.

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The Seasonic X-Series XM2-1250 PSU comes with fourteen modular cables and one 4-pin FDD cable adapter.

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July 30, 2014 | 12:55 PM - Posted by willmore (not verified)

Wonderful review, thank you.

July 30, 2014 | 04:16 PM - Posted by Anonymous (not verified)

Can the Corsair individually sleeved cables be used with this unit?

July 30, 2014 | 05:36 PM - Posted by alamakluke

I love my Seasonic X-1250M PSU. I've had it for over 1 year and never had any issues with it. This unit looks even better then the original one.

August 3, 2014 | 11:15 AM - Posted by QD (not verified)

I've had Seasonics go cradle to grave with a couple of PCs- nice PSU.
With this you're looking at a dedicated 15A outlet. Much more and you'll need a 20A.
I think I'll lose interest at 3-phase 208.

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