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Black rectangular ATX power supply with flat ribbon cables visible

Super Flower

Super Flower SF-850C12DB ATX 3.1 850 W power supply

SKU CH-7QCB-VMF1H MPN SF-850C12DB ATX 3.1

An ATX 3.1 compatible 850 W unit with fixed ribbon cables, 80 PLUS Bronze efficiency and a 140 mm length

  • Max wattage850 W
  • Power efficiency> 85%
  • Modular cablingNon-Modular
  • Power factor correctionActive
  • Main power connector20+4Pin
  • 12V railsSingle

Model ATX 3.1 Bronze (850W) Black

  • Delivers 850 W for demanding builds
  • 80 PLUS Bronze certification confirms 82% 85% 82% efficiency
  • ATX 3.1 and PCIe 5.1 ready for modern graphics cards
  • Fixed ribbon cables improve routing flexibility
  • Compact 140 mm depth fits smaller cases

850 W ATX 3.1 power supply for mainstream builds

The Super Flower SF-850C12DB delivers 850 W of continuous power through a single +12 V rail and meets the ATX 3.1 and PCIe 5.1 specifications. It is suited for builders assembling a mid-range desktop that requires a dependable fixed-cable unit without modular connectors.

Sustained-load behaviour and protection

Efficiency reaches 82 % at 20 % load, 85 % at 50 % load and 82 % at full load under the 80 PLUS Bronze programme. Active PFC and full-range 100-240 V input keep output stable during extended sessions, while over-voltage and overload protection circuits guard connected components.

Fixed ribbon cables and compact length

All power leads are flat ribbon cables that bend easily for tidy routing inside cases with limited depth. The 140 mm housing fits most standard ATX chassis, and eight SATA power connectors support multiple drives. The non-modular design means every cable remains attached, so unused leads must be managed during assembly.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $65.99
Cheaper than about 81% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand nameSuper Flower
Model nameSF-850C12DB ATX 3.1
Product typeATX 3.1 Compatible
Ports & slots
SATA power connectors8
Power
Max wattage850 W
Power efficiency> 85%
Modular cablingNon-Modular
Power factor correctionActive
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS BRONZE Certified
Overvoltage protectionYes
Overload protectionYes
Supply voltage100–240 V
AC input frequency50/60 Hz
Size & build
Shipping weight2.72 kg
Package size305 × 203 × 116 mm
Compatibility
PSU length limit140 mm

Other versions of this model

3 more in the same range

Questions about this item

How loud and hot does the 850 W SF-850C12DB get when running at full load all day?

The 80 PLUS Bronze rating means the unit runs at 82% efficiency at 20% load, 85% at 50% and 82% at 100%, so waste heat stays low even during extended high-load sessions.

What cables or connectors must my build already have to use this non-modular SF-850C12DB?

All cables are fixed, so you only need motherboard headers that accept the 20+4 pin main connector and up to eight SATA power plugs for drives.

Will the ATX 3.1 compliant SF-850C12DB work reliably with my older PCIe 3.0 graphics card?

Yes, the single +12 V rail design and ATX 3.1/3.0 compliance ensure stable power delivery to legacy GPUs while also being PCIe 5.1 ready.

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