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Item#: 9SIA0AJ35M9640

SeaSonic M12II 850 SS-850AM 850W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Full-Modular Active PFC FULL-modular Power Supply New 4th Gen CPU Certified Haswell Ready

Ships from United States. Most customers receive within 6-10 days.

Sold and Shipped by Action Packaged Inc. a-seller

Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • ATX12V / EPS12V
  • Full-Modular
  • 80 PLUS BRONZE Certified
  • 100 - 240 V
  • +3.3V@25A, +5V@25A, +12V@70A, -12V@0.5A, +5VSB@3A

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

SeaSonic M12II 850W Fully-Modular Power Supply

Seasonic M12II Bronze Series has been the ever-popular power supply series of the Full Modular category. Now Seasonic extends the Full-Modular series by introducing M12II Bronze 650/750/850 to provide consumers a larger selection in the entry level 80PLUS Bronze certified category.

The M12II Bronze new models have built in a full protection feature including OCP, OPP, OTP, OVP, SCP & UVP and meet worldwide safety and environmental standards. The all-new M12II-650/750/850 units are the new leaders in the 80 PLUS Bronze category and another great addition to the Seasonic Retail power supply family.


SeaSonic M12II
  • DC to DC Converter Design
  • Highly Reliable 221°F (105°C) Japanese Brand Capacitors
  • Ample +12V Outputs
  • Active Power Factor Correction (99% PF Typical)
  • Smart & Silent Fan Control (S2FC)
  • 12cm Ball Bearing Cooling Fan
  • Soft-Mount Rubber Cushions
  • Multi-GPU Technologies Supported
  • Full Modular
  • Easy Swap Connectors
  • Universal Ventilation [Honeycomb Structure]
  • 5-Year Warranty

Product Information

1. Dimensions (L x W x H): 6.3 x 6 x 3.3 inches (160 x 150 x 86mm)

2. AC Input & DC Output Voltages - Full Range: 100 ~ 240V (Max 90 ~ 264V)

Model +3.3V +5V +12V -12V +5Vsb Total Power
M12II 850 Bronze 25A 25A 70A 0.5A 3A 850W
150W 840W 6W 15W

3. Wire Configuration

Cable SeaSonic M12II
20 / 24P Main Power
SeaSonic M12II
EPS12V / ATX12V (8P / 4P)
SeaSonic M12II
EPS 12V (8P)
SeaSonic M12II
PCI-E (6P / 8P)
SeaSonic M12II
SeaSonic M12II
Peripheral (4P)
SeaSonic M12II
FDD (4P)
M12II 850 Bronze 1 1 1 4 8 5 2

what's in the box

SeaSonic M12II

Learn more about the SeaSonic USA SS-850AM

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
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