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Super Flower Leadex VII XG 850W 80+ Gold fully modular power supply
Super Flower

Super Flower Leadex VII XG 850W

Expert rating8.7 / 10

View on AmazonView on superflower.com.tw
Wattage:
850 W
80 PLUS Rating:
Gold
Modularity:
Fully Modular
ATX Standard:
ATX 3.1

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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: Super Flower Last updated: 2026-09-12

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Super Flower Leadex VII XG 850W Review

Enthusiasts hunting for a power supply that tests better than its 80 PLUS badge suggests will find the Super Flower Leadex VII XG 850W a familiar name: Super Flower units routinely measure closer to Platinum or Titanium efficiency despite carrying a Gold certification.

We'd recommend this to anyone who reads independent PSU reviews before buying, since Super Flower's reputation is built on exactly that kind of over-delivery. The 12-year warranty and full Japanese capacitor set are rare at this price, even if the Leadex VII name isn't as widely recognized as Corsair or Seasonic.

Over-Delivering on Its Rating

Super Flower has a well-earned reputation among independent reviewers for units that measure meaningfully better than their 80 PLUS certification, and the Leadex VII XG's Cybenetics Platinum result on a Gold-badged unit is typical of the brand.

Comparison to Alternatives

Against the ASUS ROG Strix 850W Gold ATX3.0 already in the catalog, the Leadex VII XG matches the wattage and ATX 3.0 native connector while adding a longer 12-year warranty and full Japanese capacitors. Against the Antec HCG850 Gold Extreme, the Leadex VII XG edges ahead on measured efficiency and capacitor quality at a similar price.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.7 / 10

A Gold-badged unit that tests like a Platinum one, backed by a 12-year warranty and full Japanese capacitors, our pick for enthusiasts who read the fine print.

Best for

  • Enthusiasts who research PSU platform quality closely
  • RTX 4080-class builds wanting native ATX 3.0
  • Buyers prioritizing capacitor quality and warranty length

Not for

  • Buyers who only shop by brand recognition
  • Multi-GPU workstation loads above 850W
  • SFF builds needing SFX

Specifications

What these specs mean

Identity

BrandSuper Flower
Model NumberLeadex VII XG 850W

Output and rails

+12V Rail Amperage70.8 A
Single +12V RailYes

Standards and compliance

Alternative Low PowerYes
Hold-Up Time29.8 ms

Efficiency and noise

Measured Avg Efficiency90.61 %
Measured Average Noise20.26 dBA

GPU power delivery

Native GPU Cable InclYes

Connector inventory

EPS 8-pin Connectors2
SATA Connectors12
Molex Connectors4

Form factor and fit

Length150 mm
ColourBlack

Cooling

Fan BearingFluid Dynamic
Zero-RPM SwitchableYes

Build quality

TopologyFull-Bridge LLC + DC-DC
MTBF100000 hours

Cables

ModularityFully Modular
Cable TypeFlat Ribbon

Monitoring, protection and price

ProtectionsOCP, OVP, OPP, SCP, OTP, UVP
Price149.99 USD
Warranty12 years
Wattage850 W
80 PLUS RatingGold
ATX StandardATX 3.1
Form FactorATX
Cybenetics EfficiencyPlatinum
Cybenetics NoiseA
12V-2x6 Connectors1
Zero-RPM ModeYes
Sleeved CablesNo
PCIe 8-pin Connectors3
Connector Count1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6 (600W), 3x PCIe 6+2-pin, 12x SATA, 4x Molex
Fan Size140 mm
Fan Model / Bearing140mm fluid dynamic bearing
OEM / PlatformIn-house
Japanese CapacitorsYes
Cable Lengths24-pin 600mm, EPS 700mm, PCIe 700mm, 12V-2x6 700mm, SATA 550+120+120+120mm, Molex 550+150+150+150mm

FAQs

What are the key specifications of the Super Flower Leadex VII XG 850W (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier)?

Key specs for the Super Flower Leadex VII XG 850W: Wattage 850 W, Modularity Fully Modular, Fan Size 140 mm, Warranty 12 years, 80 PLUS Rating Gold, Cybenetics Efficiency Platinum.

Will the Super Flower Leadex VII XG 850W (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier) work with my current setup?

The Super Flower Leadex VII XG 850W (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier) lists Wattage is 850 W. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Super Flower Leadex VII XG 850W (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier) best suited to?

Best suited to: Enthusiasts who research PSU platform quality closely; RTX 4080-class builds wanting native ATX 3.0; Buyers prioritizing capacitor quality and warranty length.

What are the drawbacks of the Super Flower Leadex VII XG 850W (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier)?

Not the best fit for: Buyers who only shop by brand recognition; Multi-GPU workstation loads above 850W; SFF builds needing SFX.

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