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Item#: N82E16817151141

SeaSonic SS-1050XP3 1050W ATX12V / EPS12V 80 PLUS PLATINUM Certified Full Modular Active PFC Power Supply

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  • ATX12V / EPS12V
  • Full Modular
  • 80 PLUS PLATINUM Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@25A, +5V@25A, +12V@87A, -12V@0.5A, +5VSB@3A

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
SeaSonic PLATINUM 1050W Modular Power Supply



Ultra Tight Voltage Regulation
Improved load voltage regulation keeps the voltage fluctuations on the 12V output within +2% and 0% (no negative tolerance), and on the 3.3V and 5V outputs between +1% and -1%, which (under 80 Plus load conditions) results in smooth and stable operation.


Seasonic Hybrid Silent Fan Control - S²FC & S³FC*
The industry first, advanced three-phased thermal control balances between silence and cooling. The Hybrid Silent Fan Control provides three operational stages: Fanless, Silent, and Cooling Mode. In addition, there is a switch provided to allow for manual selection between the Seasonic S²FC (fan control without Fanless Mode) and the S³FC (fan control including Fanless Mode).


New feature - Hysteresis - is achieved by a fan control IC, which optimizes how frequently the fan switches on and off. At 77°F (25°C) ambient temperature the fan turns on when the load rises above 35% (±5%) and it turns off when the load drops below 25% (±5%). Due to this lag in response the fan switches on and off less frequently, which reduces power loss in Fanless and Silent Mode.


Dual Copper Bars
These pure copper bars conduct high current more efficiently to reduce impedance and minimize voltage drop.


80+ Platinum
The Platinum Series, certified in accordance to the 80PLUS highest standards, offers the newest technology and innovation for performance and energy savings with up to 92% efficiency and a true power factor of greater than 0.9PF.

Special Features
SS-1050XP3 SS-1050XP3
  • 1. 80PLUS® Platinum Certified Super High Efficiency
  • 2. DC Connector Panel with Integrated VRM (Voltage Regulator Module)
  • 3. DC to DC Converter Design
  • 4. Dual Copper Bars
  • 5. Active Power Factor Correction (99% PF Typical)
  • 6. Conductive Polymer Aluminum Solid Capacitors
  • 7. Highly Reliable 105°C Japanese Aluminum Electrolytic Capacitors
  • 8. Gold Plated High Current Terminals
  • 9. Ultra Tight Voltage Regulation
  • 10. High +12V Output
  • 11. Dual Sided PCB Layout
  • 12. Seasonic Patented Hybrid Silent Fan Control
  • 13. Sanyo Denki San Ace Silent Fan
  • 14. Ultra Ventilation [Honeycomb Structure)
  • 15. Full Modular Cabling Design
  • 16. Multi-GPU Technology Support
  • 17. All-in-One DC Cabling Design
  • 18. Easy Swap Connector
  • 19. Universal AC Input [Full Range)
  • 20. 7-Year Warranty
Product Information
Model Platinum-1050 (SS-1050XP³ Active PFC F3)
Intel Specifications ATX12V / EPS12V
Dimensions (L x W x H) 7.4 x 5.9 x 3.3 in. (190 x 150 x 86mm)
Efficiency 80 PLUS Platinum / Energy Star / ErP Lot 6 2013 compliant
Protection Features OPP/OVP/UVP/SCP/OCP/OTP
Hazardous Materials WEEE/RoHS
AC Input Range Full Range: 100 ~ 240V (Max. 90 ~ 264V), 13-6.5A, 50/60Hz
  • MB 24/20-Pin Connector x 1 (610mm)
  • CPU 8/4-Pin x 1 (650mm)
  • CPU 8-Pin x 1 (650mm)
  • PCI-E 8/6-Pin x 8
  • Peripheral 4-Pin x 5
  • SATA x 14
  • Aux. x 1
DC Output Voltage +3.3V +5V +12V -12V +5Vsb
Maximum Load 25A 25A 87A 0.5A 3A
Combined Load 125W 1044W 6W 15W
Total Output 1050W

In the Box


Learn more about the SeaSonic USA SS-1050XP3

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 7 years
  • Limited Warranty period (labor): 7 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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