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Seasonic SS-1250XM X-Series ATX PC Power Supply

4.0 out of 5 stars 32 customer reviews

Currently unavailable.
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  • 80PLUS Gold Certified super high efficiency
  • Full modular cabling design
  • DC connector module with integrated VRM
  • Input voltage 100-240V (max 90-264V)
  • Tight voltage regulation (+/-3%)

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Customer Rating 4 out of 5 stars (32) 4 out of 5 stars (486) 4 out of 5 stars (4402) 4 out of 5 stars (77) 4 out of 5 stars (781) 4 out of 5 stars (821)
Price Unavailable $189.97 $108.85 $90.75 $175.00 $159.90
Shipping FREE Shipping FREE Shipping
Exclusively for Prime members
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Sold By PCNation Neutron USA
Item Dimensions 5.91 x 3.39 x 7.48 in 15.43 x 8.85 x 5.98 in 7.09 x 5.91 x 3.35 in 6.3 x 5.9 x 3.4 in 8 x 4 x 6 in 5.91 x 5.51 x 3.39 in
Item Weight 6.61 lbs 9.76 lbs 7 lbs 8 lbs 9 lbs 3.53 lbs

Product description

This high-wattage power supply is the top of the line of our fully modular multi-output ATX power supply family, that was pioneering in obtaining the industry’s first 80 Plus Gold certification. Its newly improved Hybrid Fan control circuit employs hysteresis through an innovative IC, which automatically adjusts the fan mode and its speed according to the ambient temperature level. Reducing the number of on/off cycles of the fan further improves energy utilization and prolongs the lifespan of the system. This recently upgraded member of the premium X-series product family boasts true class leading performance and build quality. Seasonic was the forerunner of creating the very first 80 PLUS Gold certified power supply on the market and since that time it has built a very popular Gold series lineup that covers a full power range of power supplies with impeccable performance and efficiency. The highly efficient 80 PLUS Gold certification guarantees greater than 87 %, 90 % and 87 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. The clear advantage of buying a power supply with 80 PLUS Gold rating is the fact that the less energy gets wasted during power conversion, the lower the operating costs will be for the user.

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Additional Information

Warranty & Support Return Policy:You may return any new computer purchased from that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here


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No returns or exchanges, but item is covered by the manufacturer's warranty.

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No returns or refunds but product is covered by manufacturer's warranty.

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32 customer reviews

4.0 out of 5 stars

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