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Seasonic SS-660XP2 ATX 12V / EPS 12V, 660W, 80 PLUS PLATINUM Full Modular certified Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

  • ATX12V / EPS12V
  • Full Modular
  • 80 PLUS PLATINUM Certified
  • 100 - 240 V
Seasonic Power Supply


Designed to outperform, the SeaSonic SS-660XP power supply incorporates the first-class quality, reliability and stability that's required by professional system builders and DIY enthusiasts. This PSU is 80 PLUS Platinum-rated for super high efficiency, and features a strong, single +12V rail to sufficiently power your high-end CPU and even multiple-GPU setup.

Its exclusive Fully Modular Design contributes to enhanced installation convenience and interior tidiness, along with an Integrated Voltage Regulation Module for optimized efficiency. Engineered with only premium components, including premium capacitors and heavy-duty protection circuitries, the SS-660XP maintains continuous output with tight voltage regulation for trouble-free operation in any situation. The industry-first Hybrid Silent Fan Control offers flexible options to achieve the best balance between cooling and silence.

Seasonic Power Supply

Seasonic Patented DC Connector Panel with Integrated Voltage Regulation Module

Seasonic's patented Fully Modular Design, while minimizing voltage drops and impedance, greatly maximizes efficiency and cooling to enhance overall performance and reliability.

Patent #: US8.040.686, TW381825, CN1552150, JP3171420. Patent Pending: US, DE

Seasonic Power Supply

Seasonic Hybrid Silent Fan Control - S2FC and 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).

Patent #: TW410250, CN808637, CN1980304. Patent Pending: US, JP

Seasonic Power Supply

Special Features

  • 1. 80PLUS® Platinum Certified Super High Efficiency
  • 2. DC Connector Panel with Integrated VRM (Voltage Regulator Module)
  • 3. DC to DC Converter Design
  • 4. Active Power Factor Correction (99% PF Typical)
  • 5. Conductive Polymer Aluminum Solid Capacitors
  • 6. Highly Reliable 105°C Japanese Aluminum Electrolytic Capacitors
  • 7. Gold-Plated High-Current Terminals
  • 8. Tight Voltage Regulation (±2%)
  • 9. High +12V Output
  • 10. Dual-Sided PCB Layout
  • 11. Seasonic Patented Hybrid Silent Fan Control
  • 12. Sanyo Denki San Ace Silent Fan
  • 13. Ultra Ventilation (Honeycomb Structure)
  • 14. Full Modular Cabling Design
  • 15. Multi-GPU Technology Support
  • 16. All-in-One DC Cabling Design
  • 17. Easy-Swap Connector
  • 18. Universal AC Input (Full Range)
Seasonic Power Supply

AC Input & DC Output Voltages (Full Range: 100 - 240V (Max 90 - 264V), 50 / 60Hz)

Seasonic Power Supply


Seasonic Power Supply

What's in the Box

Seasonic Power Supply


Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies*

  • Return for refund within: 30 days
  • Return for replacement within: 30 days
  • Restocking Fee: Yes
  • This item is covered by Newegg.com's Standard Return Policy. Read full return policy for details.
  • *Subject to applicable law