1. Computer Power Supplies Parts
  2. sku: 10717149857895751
  3. SEA SONIC GM-850

SEA SONIC GM-850 Focus Semi Modular Atx Power Supply Seasonic 850W

Gm-850 Sea Sonic Seasonic Focus 850w 80 Gold Semi-modular Atx Power Supply

( Brand: Sea Sonic ), ( Manufacturer Part Number: GM-850 ), ( Model: SEASONIC FOCUS GM-850 ), ( Form Factor: Atx ), ( Type: Power Module ), ( Maximum Power: 850 W ), ( Color: Gold ), ( Features: Modular )

Review SEA SONIC Seasonic Focus 850w Gold Semi modular Atx Power Supply

The SeaSonic GM-850 is a top-tier, 850-watt 80 Gold certified semi-modular ATX power supply that delivers reliable and efficient power to your PC components. This power supply boasts an impressive 92% conversion efficiency, ensuring minimal energy waste and reduced operating temperatures.

The GM-850 features SeaSonic's renowned Fanless Mode technology, which allows the power supply to operate silently under low to medium loads without the need for a fan. When the system requires more power, the fan automatically kicks in to maintain optimal operating temperatures. This innovative design provides an exceptionally quiet computing experience while maintaining high performance.

As a semi-modular design, the GM-850 offers the flexibility of detachable cables for peripheral components, such as optical drives, fans, and non-essential expansion cards. This configuration reduces clutter inside the case and improves airflow by eliminating unnecessary cables.

The power supply comes equipped with high-quality Japanese 105 C capacitors, ensuring long-term reliability and durability. It also boasts a robust 135mm double-ball fan, designed for quiet operation and long lifespan. The GM-850's modular design features a universal AC input (100-240V) and a wide range of output connectors, including 2x EPS12V, 8x 12V, 4x 12V, 4x SATA, and 8x 4-pin Peripheral connectors.

The SeaSonic GM-850 is a premium choice for powering high-performance systems and delivers on its promise of efficiency, reliability, and quiet operation. With its advanced features and top-notch components, this power supply is an excellent investment for PC enthusiasts and power users alike.

The SeaSonic GM-850 (Seasonic Focus 850W 80 Gold Semi-Modular ATX Power Supply) is a high-performance power supply unit (PSU) that offers several advantages and potential drawbacks for PC builders and upgraders. Let's examine the pros and cons of this PSU to help you make an informed decision.

Pros:

1. High Wattage: The GM-850 delivers an impressive 850 watts of power, which is more than enough for most high-end gaming and professional workloads.

2. 80 Gold Certification: This PSU adheres to the 80 Gold standard, ensuring efficient power delivery and lower power consumption.

3. Semi-Modular Design: The semi-modular design allows you to connect only the cables you need, reducing clutter and improving airflow within your case.

4. High-Quality Components: Seasonic is known for using high-quality components, ensuring reliability, longevity, and stable performance.

5. Quiet Operation: The GM-850 features a quiet 140mm fan that maintains low noise levels even under heavy loads.

Cons:

1. Price: The GM-850's high-performance features come at a premium price, which may be a deterrent for some budget-conscious builders.

2. Limited Connectivity: Some users may find the semi-modular design limiting, as certain cables cannot be swapped out or added depending on their specific system requirements.

3. Size: Larger than some entry-level power supplies, the GM-850 may not fit in smaller cases or require additional clearance.

In conclusion, the SeaSonic GM-850 is an excellent choice for PC enthusiasts and professionals seeking a reliable, high-performance, and efficient power supply. Its semi-modular design, quiet operation, and high-quality components make it a solid investment, despite the premium price. If high wattage, efficiency, and durability are your priorities, and you can accommodate its size and price, the GM-850 is a recommended purchase.

Details:

Price is negotiable; 2 are available for $110 each.

part #: gm850 prices

  • $35.00-$200.00

specifications powsuppy:

  • brand: Sea Sonic
  • mpn: Gm-850
  • model: Seasonic Focus Gm-850
  • form factor: Atx
  • type: Power Module
  • maximum power: 850 W
  • color: Gold
  • features: Modular

payments powsuppy:

  • wallet: Paypal
  • credit card: Mastercard
  • other

general powsuppy:

  • condition: Used
  • Computers/Tablet's Networking > Computer Components Parts > Power Supplies

seller powsuppy:

  • city: Morganville, New Jersey
  • rating: 0.0%
  • # reviews: 2

returns powsuppy:

  • policy: No Returns

offer powsuppy:

  • availability: In Stock
  • quantity: 2
  • best offers: True
  • started: January 7, 2026
  • sold: 0
  • options: Ship-to-home

shipping powsuppy:

  • transit: 7-14 Days
  • class: Expedited
  • carrier: USPS
  • cost: $24.82
  • service: USPS Priority Mail
  • type: Calculated
form factor: atx, type: power module, maximum power: 850 w, features: modular,
category: computers > computers/tablets networking > computer components parts > power supplies, color: gold, sku: 10717149857895751,

Sea Sonic GM-850 Is Similar To:

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3 offers $35.00–$200.00 USD
  • Offer #1: $100.00 price + $12.13 shipping estimate = $112.13* total. Only opened the box but had never been used so it s pretty much in brand new condition.+$12.13 shipping
  • Offer #2: $200.00 price + $0.00 shipping estimate = $200.00* total. This Unit is sold as it is shown on the pictures Type: Power Module.FREE SHIPPING
  • Offer #3: $35.00 price + $10.60 shipping estimate = $45.60* total. Untested Sea Sonic Focus Plus Gold 850W ATX Power Supply Unit for parts.+$10.60 shipping

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