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Seasonic X-Series XM2-1250 Power Supply Review

Manufacturer: Seasonic

A Detailed Look (Cont’d)

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The Seasonic XM2-1250 comes with a good assortment of all modular cables as outlined in the table below.  All of the cables except the 24-pin ATX power cable are the flat, ribbon-style cables. (Note: cable lengths are listed in the Specifications box, back on page 2.)

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(Courtesy of Seasonic)

Here are a few photos of the Seasonic X-Series XM2-1250 power supply showing the components and internal layout.

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The XM2-1250 incorporates a reliable half-bridge topology with LLC resonant controller on the primary with two DC-to-DC converters (+3.3V and +5V) on the secondary located on the modular X-Series connector board. All of the capacitors are high-quality components with predominately electrolytics on the main PCB and solid polymer caps on the X-Connect board. The three primary caps are made by Nippon Chemi-Con and rated for 390 uF, 420V, and 105°C.

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July 30, 2014 | 09:55 AM - Posted by willmore (not verified)

Wonderful review, thank you.

July 30, 2014 | 01:16 PM - Posted by Anonymous (not verified)

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

July 30, 2014 | 02:36 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 | 08:15 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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