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  1. Computer power supply units

Seasonic B12 BC-850

9,3/10 (6 reviews)
View all accessories
Seasonic computer power supply units
Seasonic B12 BC-850

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  • Current product
  • 86,-
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Power
  • 850 W
  • 850 W
  • 750 W
  • 650 W
  • 750 W
Certification (PSU)
  • 80 PLUS Bronze
  • 80 PLUS Gold
  • 80 PLUS Gold
  • 80 PLUS Gold
  • 80 PLUS Gold
Fan diameter
  • 135 mm
  • 135 mm
  • 120 mm
  • 120 mm
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View full comparison

Product information

Key specs

Power
850 W
Certification (PSU)
80 PLUS Bronze
Fan diameter
135 mm
Undervoltage protection
Yes
Overvoltage protection
Yes
View all specifications

Pros and cons

According to our computer power supply unit expert
  • This power supply unit has the 80 Plus Bronze certificate, which means it's at least 82% efficient.
  • The power supply unit automatically switches the fan to passive mode when you perform less intensive tasks.
  • Since it's protected from voltage spikes, undervoltage, overvoltage, short circuiting, and overheating, the power supply unit can be safely used in any situation.
  • The power supply unit isn't modular, so you have less space in your computer case.
Product Expert computer power supply units

Description

With the Seasonic B12 BC-850, you get an energy-efficient computer power supply unit for your gaming PC. The power supply unit has the 80 Plus Bronze certificate, so it's at least 82% efficient when it comes to power consumption. That means 82% of the drawn power is used to power the computer and just a small part of the power is wasted. With a power of 850W, you can power all of your high-end components. For example, a NVIDIA GeForce RTX 3080. Are you done with your gaming session? The fan automatically switches to passive mode and continues to work silently in the background. That way, you're not bothered by noise during less intensive usage. Seasonic has designed the power supply unit in such a way that it's protected from voltage spikes, undervoltage, overvoltage, short circuiting, and overheating. Thanks to all of these protections, you can safely use the power supply unit in any situation.
With the Seasonic B12 BC-850, you get an energy-efficient computer power supply unit for your gaming PC. The power supply unit has the 80 Plus Bronze certificate, so it's at least 82% efficient when it comes to power consumption. That means 82% of the drawn power is used to power the computer and just a small part of the power is wasted. With a power of 850W, you can power all of your high-end components. For example, a NVIDIA GeForce RTX 3080. Are you done with your gaming session? The fan automatically switches to passive mode and continues to work silently in the background. That way, you're not bothered by noise during less intensive usage. Seasonic has designed the power supply unit in such a way that it's protected from voltage spikes, undervoltage, overvoltage, short circuiting, and overheating. Thanks to all of these protections, you can safely use the power supply unit in any situation.

Tips for using this product

Tips for using this product

Read our tips and find out all about how to set up your product and use it the right way.

View all support

Included by default

  • Manual (10.89 MB)
  • Power cable
  • Cable set

Included by default

  • Manual (10.89 MB)
  • Power cable
  • Cable set

Key specs

Power
850 W
Certification (PSU)
80 PLUS Bronze
Fan diameter
135 mm
Undervoltage protection
Yes
Overvoltage protection
Yes
View all specifications

Reviews

6 reviews
9,3/10 (6 reviews)

Rating

4 reviews with 5 stars

2 reviews with 4 stars

0 reviews with 3 stars

0 reviews with 2 stars

0 reviews with 1 star

Rating per section

Energy consumption
10,0
Capacity
10,0

Most helpful reviews

8,0/10

You can't go wrong for the price of this unit.

  • Simple unit with every function printed on the connector by cable
  • Jarni van der haegen
  • 3 July 2021
  • Automatically translated from Dutch
8,7/10

Perfect value for the yellow

  • Price quality
  • Compact for an atx power supply
  • CPU and motherboard cables on the short side
  • Francis pede
  • 13 July 2021
  • Automatically translated from Dutch
10/10

there's energy in this!

  • nice and cheap
  • multiple video card connections
  • Henk de groot
  • 24 December 2021
  • Automatically translated from Dutch
10/10

Reccomended

  • Antonio
  • 2 June 2023
10/10

Does what it's supposed to do

  • Quiet
  • Price
  • Not modular and therefore a bunch of cables
  • Marcel
  • 20 October 2023
  • Automatically translated from Dutch
8,0/10

You can't go wrong for the price of this unit.

  • Simple unit with every function printed on the connector by cable

Simple unit, everything straight forward to install.

  • Jarni van der haegen
  • 3 July 2021
  • Automatically translated from Dutch
8,7/10

Perfect value for the yellow

  • Price quality
  • Compact for an atx power supply
  • CPU and motherboard cables on the short side

Perfect power supply for low-budget gaming PC

  • Francis pede
  • 13 July 2021
  • Automatically translated from Dutch
10/10

there's energy in this!

  • nice and cheap
  • multiple video card connections
  • nice and quiet

just good cheap food, no complaints

  • Henk de groot
  • 24 December 2021
  • Automatically translated from Dutch
View all 6 reviews

Insure your computer power supply unit

You can select one of the Backup Plans below in your shopping cart. It will protect your brand new computer power supply unit against damage and/or theft.

Seasonic B12 BC-850
  • 3-year Backup Plan
    15,99 one-time payment
  • 5-year Backup Plan
    25,99 one-time payment

Specifications

Product

Product number
883296
Manufacturer code
B12-BC-850
Brand
Seasonic
Warranty
10 years
Processing of your defect
Via Coolblue
Old product returned for free
Yes

General properties

Power
850 W
Certification (PSU)
80 PLUS Bronze
Average lifespan
100000 hours
Fan diameter
135 mm

Physical properties

Form factor version
2.4
Width
15 cm
Depth
14 cm
Height
8,6 cm
Color
Black
Material
Metal

Security

Undervoltage protection
Yes
Overvoltage protection
Yes
Overheating protection
Yes
Voltage spike protection
Yes
Short-circuit protection
Yes

Related products

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Seasonic B12 BC-850
Seasonic B12 BC-850
86,-
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