Sold by: Newegg
  • $119.99
  • $109.99
  • Save: $10.00 (8%)
  • $30.00 USD Rebate Card available
  • $29.99 Shipping
Add To Wish ListFound on 15 wish lists
Receive a $30 prepaid card by mail from Antec! Offer expires on 9/20/21. Limit 1 per household Print Rebate Form

Are you an E-Blast Insider?

Get Educated

Make informed decisions with expert advice. Learn More

Antec NeoECO Series NE550G 550W ATX 12V / EPS 12V 80 PLUS GOLD Certified Semi-Modular Compact 140 mm Size 7 Year Warranty Power Supply

In stock.
Ships from United States.
Fees for brokerage and duty included in price.
  • 500W
  • 550W
  • 600W
  • 650W
  • 700W
  • 750W
  • Non-Modular
  • Semi-Modular
  • 80 Plus Bronze
  • 80 Plus Gold
  • 80 PLUS GOLD Certified: 99% +12V Output providing clean, stable power with maximum CPU & GPU compatibility
  • 12V Rail Stable Output: A Server-class full-bridge LLC Design with a synchronous rectification
  • High-Efficiency DC-to-DC Stability: Japanese capacitors ensure reliability and guarantee to deliver up to 92% energy efficiency.
  • 120 mm Silence Whisper-Quiet Fan: High-quality fan with long lifetime
  • Advanced Cable Management: Providing black, flat, modular cables to optimize cable-management space, resulting in better airflow and reducing clutter.
  • Compact Size for Easier Build: 140 mm x 150 mm x 86 mm
  • 7 Year Warranty
Antec Banner Showing the NeoECO 550 GOLD PSU Angled Down to the Right, Along with Graphics and Text that Indicate: Japanese-Made Capacitors, Continuous Power, Advanced Cable Management, 92% MAX EFICIENCY and AQ 7-YEAR WARRANTY

The NeoECO GOLD series features high performance with an 80 PLUS GOLD rating, delivering up to 92% efficiency and reducing your electricity bill.


Featuring hybrid modular cabling, a whisper-quiet 120mm fan controlled by Antec’s renowned Thermal Manager, and CircuitShield industrial-grade protection—all backed by our seven-year Antec Quality warranty, the NeoECO GOLD series is the power supply that builders choose for a stable, quiet and efficient system.

Antec NeoECO 550 GOLD PSU Standing Up, Facing Forward Next to the 80 PLUS GOLD Badge
The Interior Components of the Antec NeoECO 550 GOLD PSU, along with text that reads and points out: Japanese heavy-duty caps, EMI shielding and 12V rail stable output A server-class full-bridge LLC design with a snchronous rectification based on a dc-dc topology. Below these images is a banner showing the Antec NeoECO Power Supply Angled Up to the Left, Next to Text That Reads: 99% +12V OUTPUT

80 PLUS Japanese capacitors provide high-efficiency DC-to-DC stability, and every power supply from our NeoECO GOLD series is tested for reliability and guaranteed to deliver up to 92% energy efficiency.

Engineered with high-quality capacitors and low-noise transformers, the NeoECO GOLD series provides clean, stable power with maximum CPU and GPU compatibility.

Antec Quality 7-Year Warranty Badge and text that reads: 7 YEAR WARRANTY. Below this is another banner with the Antec NeoECO Power Supply Angled Down to the Right Next to Its Cables and Text That Reads: ADVANCED HYBRID - CABLE MANAGEMENT

The NeoECO GOLD Series power supplies provide black, flat, modular cables to optimize cable-management space, resulting in better airflow and reducing clutter.

Diagrams for the Antec NeoECO 550 PSU Cable Connectors: 24-pin, two 8 (4 + 4)-pin ATX12V/EPS12V, four 8(6 + 2)-pin PCI-E, eight SATA and three Molex connectors Graphs for Quite Computing Whisper-Quiet High-Quality Fan and 80 PLUS GOLD CERTIFIED Is Up to 92% Efficient Closeup of the Antec NeoECO Power Supply's Fan, Next to Text That Reads: 120MM SILENCE WHISPER-QUIET - High-Quality Fan with a Long Lifetime Input and Output Specs for the Antec NeoECO Power Supply Above the Power Supply Angled to the Left with Text and graphics indicating its compact size of 3.4 inches height, 5.5 inches width and 5.9 inch length, along with a net weight of 1.94kg and gross weight of 2.92kg


  • 550W Continuous Power - Guaranteed 550W of continuous power from Antec
  • 80 PLUS® Gold Certified - Up to 92% efficient to reduce your electricity bill
  • AQ7 - Antec-quality, 7-year warranty and lifetime global 24/7 support
  • 120mm Silence - Whisper-quiet high-quality fan with long lifetime
  • Semi-Modular Cable Management - Improves airflow and reduces clutter
  • 99% +12V - Output for maximum CPU & GPU support
  • Japanese Heavy-Duty Caps - High-performance capacitors ensure DC stability and regulation
  • 2x PCI-E connectors for multiple GPU support
  • ATX12V 2.4 - Engineered according to the newest PSU guideline and compatible
    with the latest CPU generation
  • PhaseWave™ Design - A server-class full-bridge LLC design with synchronous rectification
    based on a DC-DC topology
  • ErP Lot 6: 2013 - Compliant to the toughest energy standard available
  • CircuitShield™ - Full suite of industrial grade protections: Over Current Protection (OCP),
    Over Voltage Protection (OVP), Short Circuit Protection (SCP),
    Over Power Protection (OPP), Over Temperature Protection (OTP),
    Under Voltage Protection (UVP), Surge & Inrush Protection (SIP),
    No Load Operation (NLO)
  • UPC# - 0-761345-11219-2
Antec Logo

Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 7 years
  • Limited Warranty period (labor): 7 years
  • Read full details

Return Policies