Seasonic B12 BC 850 W Non-Modular PSU, ATX 12 V, 80 PLUS Bronze Certified PC Power Supply with Fixed Cables by Amazon.co.uk

Price last update: 12/06/2025
  • High Efficiency, 80 PLUS Bronze Certified
  • Compact ATX Size [140 mm deep]
  • Smart and Silent Fan Control
  • Tight Voltage Regulation (12 V, 5 V, 3.3 V) [± 3 %]
  • Ample +12 V Output, 5 years warranty

    Compare Seasonic B12 BC 850 W Non-Modular PSU, ATX 12 V, 80 PLUS Bronze Certified PC Power Supply with Fixed Cables with other products:

    Description

    Seasonic B12 BC 850 Watt Power Supply Unit
    The B12 BC Series is available in the standard ATX Form Factor and in wattages that are most common for a PC system. The Seasonic B12 BC achieves 80 PLUS Bronze standard of providing at least 82 %, 85 % and 82 % power usage efficiency at 20 %, 50 % and 100 % operating loads, respectively.
    This efficiency, combined with Active Power Factor Correction, enables the B12 BC series power supplies to lessen energy waste, which translates into savings on the costs of energy costs for its users.
    In addition to being greatly efficient, the B12 BC units utilize the LLC resonant converter design, and the industry’s leading Smart and Silent Fan Control (S2FC).
    FEATURES
    ATX 12 V
    Fixed cables
    80 PLUS Bronze Certified
    Dimensions: 140 mm (L) x 150 mm (W) x 86 mm (H)
    80 PLUS BRONZE
    The 80 PLUS Bronze certification indicates that a high percentage of the electricity is converted into useful power, therefore there is less heat lost and more money saved on the electricity bill.
    The 80 PLUS Bronze certification achieves greater than 82 %, 85 % and 82 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. Seasonic’s B12 BC Series is an economical choice with great performance and high built-in value.
    S2FC - Smart and Silent Fan Control
    The intelligent thermal circuit feature is designed to find the optimal balance between the necessity to cool the components and the need to run the power supply in the most silent manner possible.
    Fixed Cables
    B12 BC-850 includes 1 x 550 mm Main Power, 2 x 600 m m EPS 12 V / ATX 12 V, 4 x PCI-E, 6 x SATA and 3 x Peripheral cables.
    Efficiency
    80 PLUS Gold
    80 PLUS Bronze
    Form Factor
    Intel ATX 12 V
    Intel ATX 12 V
    Dimensions
    140 mm (L) x 150 mm (W) x 86 mm (H)
    140 mm (L) x 150 mm (W) x 86 mm (H)
    Fan Size
    120 mm
    120 mm
    Modularity
    Fixed cables
    Fixed cables

    Product information

      • Series:Silent Fan
      • Brand:Seasonic
      • Connector type:ATX
      • Output wattage:850
      • Form Factor:ATX
      • Wattage:850 watts
      • Cooling method:Air
      • Item dimensions L x W x H:60 x 60 x 85 centimetres
      • Item weight:2 Kilograms
      • Power supply design:Non Modular
      • Product Dimensions:60 x 60 x 85 cm; 2 Kilograms
      • Batteries:1 Lithium Ion batteries required.
      • Item model number:B12BC-850
      • Manufacturer:Seasonic
      • Color:80 PLUS Bronze
      • Voltage:220
      • Are Batteries Included:No
      • Lithium Battery Energy Content:2 Kilowatt Hours
      • Lithium Battery Packaging:Batteries packed with equipment
      • Lithium Battery Weight:2 Grams
      • Number Of Lithium Ion Cells:5
      • Number of Lithium Metal Cells:5
      • Item Weight:2 kg
      Seasonic B12 BC 850 W Non-Modular PSU, ATX 12 V, 80 PLUS Bronze Certified PC Power Supply with Fixed Cables
      Seasonic B12 BC 850 W Non-Modular PSU, ATX 12 V, 80 PLUS Bronze Certified PC Power Supply with Fixed Cables by Amazon.co.uk
      Price last update: 12/06/2025