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Black rectangular ATX power supply unit with 140 mm fan and modular cable sockets

Super Flower

Super Flower SF-850F14GE Leadex III ATX 3.1 850W power supply

SKU CH-0EMC-7JE9W MPN SF-850F14GE

An ATX 3.1 compatible, fully modular 850 W unit with a 140 mm fluid-dynamic-bearing fan, 80 PLUS Gold and Cybenetics Gold efficiency, and a single +12 V rail

  • Max wattage850 W
  • Power efficiency> 90%
  • Modular cablingFull Modular
  • Fan configuration1 × 140 mm
  • Power factor correctionActive
  • Main power connector20+4Pin

Energy-Efficient Gold

Watts 850W

  • Full modular cables simplify builds and cable routing
  • 140 mm fluid dynamic bearing fan with copper shaft runs quietly and lasts longer
  • 80 PLUS Gold and Cybenetics Gold certifications confirm high efficiency across loads
  • ATX 3.1 and PCIe 5.1 compliance handles transient power spikes
  • Eight protection circuits including OVP OCP OPP SCP UVP OTP NLO SIP safeguard components

850W ATX 3.1 Power Supply

This fully modular ATX 3.1 unit delivers 850W from a single +12V rail. It targets builders who need PCIe 5.1 readiness and high efficiency in a 150mm deep chassis. Cybenetics Gold and 80 PLUS Gold certifications confirm >90% typical efficiency. The ribbon cable set keeps routing clean in compact or showcase builds.

Compatibility Checklist

Verify that your case accepts a 150mm long PSU and that the 20+4Pin main connector matches your motherboard. Count required EPS, PCIe, SATA and peripheral plugs against the supplied set: two 4+4Pin EPS, three 6+2Pin PCIe, one dual 8Pin to 12V-2x6, eight SATA and four four-pin peripheral connectors. Ensure your mains supply falls within the 100–240V 50/60Hz input range.

Build Quality and Daily Use

A 140mm fluid dynamic bearing fan with a copper shaft runs in semi-fanless mode at low load, reducing noise during idle work. Full modularity means only necessary cables stay inside the case, improving airflow and simplifying upgrades. The protection suite covers OVP, OCP, OPP, SCP, UVP, OTP, NLO and SIP for stable operation under transient spikes.

How it compares

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

Price $101.99
Cheaper than about 67% 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
Product lineLeadex III ATX 3.1
Model name850 W
Product typeATX 3.1 Compatible
Graphics
SLI supportReady
CrossFire supportReady
Ports & slots
SATA power connectors9
Connection types1 × 20+4Pin ATX
2 × 8pin (4+4) EPS (CPU)
3 × 8pin (6+2) PCIE
8 x SATA
4 x Four-Pin Peripheral
1 x Dual 8Pin to 12 V-2 × 6 Pin
Power
Max wattage850 W
Power efficiency> 90%
Modular cablingFull Modular
Power factor correctionActive
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Overload protectionYes
Built-in protectionOVP / OCP / OPP / SCP / UVP / OTP / NLO / SIP
Supply voltage100–240 V
AC input frequency50/60 Hz
Size & build
Shipping weight2.95 kg
Package size343 × 178 × 114 mm
Compatibility
Haswell compatibilityReady
PSU length limit150 mm
More details
Fan configuration1 × 140 mm

Other versions of this model

5 more in the same range

Questions about this item

Which cables are included and what must I source myself?

The box contains a full modular cable set with one 20+4 pin ATX, two 8-pin EPS, three 8-pin PCIe, eight SATA, four peripheral and one dual 8-pin to 12V-2x6 adapter. No extra cables are required for a standard build.

How do I decide between the available versions or capacities?

This unit is the 850 W Leadex III ATX 3.1 model; choose it if your GPU and CPU combined draw fits within 850 W and you need ATX 3.1 with a 12V-2x6 connector.

What does the 850 W rating mean once the unit is installed in my PC?

It delivers up to 850 W continuous on a single +12 V rail with 87 % efficiency at 20 % load, 90 % at 50 % and 87 % at full load, meeting both 80 PLUS Gold and Cybenetics Gold targets.

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