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Antec HCG850 Gold Extreme fully modular power supply
Antec

Antec HCG850 Gold Extreme

Expert rating8.1 / 10

View on AmazonView on antec.com
Wattage:
850 W
80 PLUS Rating:
Gold
Modularity:
Fully Modular
ATX Standard:
ATX 2.x

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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: Antec Last updated: 2026-10-08

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Antec HCG850 Gold Extreme Review

Wanting a step down from the Antec HCG1000 Gold Extreme already in this catalog, the Antec HCG850 Gold Extreme brings the same ATX 3.0 platform and 10-year warranty to a more common 850W tier.

We think this is a strong pick for RTX 4080-class builds: native 12V-2x6, Zero RPM mode, and the same 10-year warranty as Antec's higher-wattage units, at a lower price than stepping up to 1000W you don't need.

Shared Platform, Lower Wattage

The HCG850 uses the same CWT-built ATX 3.0 platform as the HCG1000, just tuned for a lower wattage ceiling, which keeps efficiency and transient handling consistent across the HCG Extreme line.

Comparison to Alternatives

Against the Antec HCG1000 Gold Extreme already in the catalog, the HCG850 drops 150W of headroom to hit a lower price on the identical platform and warranty terms. Against the Cooler Master GX III 750, the HCG850 offers 100W more headroom at a similar native-12V-2x6 spec and matching 10-year warranty.

Our verdict

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

Expert rating8.1 / 10

A well-priced step below the HCG1000 with the same ATX 3.0 platform and 10-year warranty, right for RTX 4080-class builds.

Best for

  • RTX 4080-class single-GPU builds
  • Buyers wanting a 10-year warranty at 850W
  • Native ATX 3.0/12V-2x6 requirements

Not for

  • Multi-GPU or extreme workstation loads
  • SFF builds needing SFX
  • Buyers wanting sleeved cables stock

Specifications

What these specs mean

Identity

BrandAntec
Model NumberHCG850 Extreme

Output and rails

Single +12V RailYes

Standards and compliance

PCIe CEM StandardNone

GPU power delivery

12VHPWR Connectors0

Connector inventory

EPS 8-pin Connectors2
SATA Connectors10
Molex Connectors6

Form factor and fit

Length160 mm
ColourBlack

Cooling

Fan BearingFluid Dynamic

Build quality

TopologyFull-Bridge LLC + DC-DC

Cables

ModularityFully Modular

Monitoring, protection and price

ProtectionsOCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
Price119.99 USD
Warranty10 years
Wattage850 W
80 PLUS RatingGold
ATX StandardATX 2.x
Form FactorATX
12V-2x6 Connectors0
Zero-RPM ModeYes
Sleeved CablesNo
PCIe 8-pin Connectors6
Connector Count1x 24-pin ATX, 2x EPS 4+4, 6x PCIe 6+2-pin, 10x SATA, 6x Molex, 1x FDD
Fan Size135 mm
Fan Model / Bearing135mm fluid dynamic bearing
Japanese CapacitorsYes
Cable Lengths24-pin 600mm, EPS 650mm, PCIe 600mm, SATA 600-750mm

FAQs

What are the key specifications of the Antec HCG850 Gold Extreme (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier)?

Key specs for the Antec HCG850 Gold Extreme: Wattage 850 W, Modularity Fully Modular, Fan Size 135 mm, Warranty 10 years, 80 PLUS Rating Gold, Form Factor ATX.

Will the Antec HCG850 Gold Extreme (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier) work with my current setup?

The Antec HCG850 Gold Extreme (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 Antec HCG850 Gold Extreme (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier) best suited to?

Best suited to: RTX 4080-class single-GPU builds; Buyers wanting a 10-year warranty at 850W; Native ATX 3.0/12V-2x6 requirements.

What are the drawbacks of the Antec HCG850 Gold Extreme (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier)?

Not the best fit for: Multi-GPU or extreme workstation loads; SFF builds needing SFX; Buyers wanting sleeved cables stock.

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