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Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2x6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan - 5 Year Warranty
Rosewill

Rosewill VMG 850W 80+ Gold

Bottom line: The Rosewill VMG 850W 80+ Gold ($71.20 on Amazon as of 2026-10-07): 80 PLUS Gold efficiency with fully modular cabling for tidy SFF routing; main trade-off: 850W caps you out on a 5090-class GPU paired with a high-draw CPU.

$71.20

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Buy on Amazon — $71.20 Compare to similar power supplies

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 80 PLUS Gold efficiency with fully modular cabling for tidy SFF routing
  • ✓ Native PCIe 5.1 12V-2x6 cable delivers 600W to Gen 5 GPUs, no adapter
  • ✓ Handles 300% GPU power excursion spikes and 235% overall excursion
  • ✓ 140x150x86mm chassis is 35% smaller than standard ATX units

Cons

  • ✗ 850W caps you out on a 5090-class GPU paired with a high-draw CPU
  • ✗ Single 12V-2x6 cable limits you to one Gen 5 card at full 600W
  • ✗ 120mm FDB fan is smaller than the 135-140mm fans on rival Gold units
  • ✗ Rosewill carries less enthusiast mindshare than Corsair or Seasonic

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SpecPicks Verdict

SpecPicks scored Rosewill VMG 850W 80+ Gold using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Rosewill's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Intel ATX 3.0 & 3.1 Ready: Fully compatible with the latest Intel ATX 3.0 and 3.1 specifications for modern PC builds
  • Full Modular 80 PLUS Gold Certified: Achieves 80 PLUS Gold efficiency certification with fully modular cable management for clean builds
  • PCIe 5.1 / Gen 5 12+4 Pin 12V-2x6 Cable: Equipped with the latest PCIe 5.1 connector supporting Gen 5 graphics cards
  • Up to 235% Power Excursion & 300% GPU Power Excursion: Handles extreme power spikes with up to 235% overall power excursion and 300% GPU power excursion capability
  • Optimized Thermal Control: Steel shell with large vents and 120mm FDB fan enhance cooling performance
  • Next-Gen GPU Support: Dedicated PCIe 5.1 cable delivers 600W direct power to new graphics cards

Full Specifications

BrandRosewill
Wattage850 watts
Model NameVMG850
Unit Count1.0 Count
Form FactorATX
Model NumberVMG850
CompatibilityPC
Safety ShieldSix-protection suite (OCP/OPP/OTP/OVP/SCP/UCP) ensures complete system security
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage850 Watts
Item Dimensions5.51 x 5.9 x 3.38 inches
Mfr Part NumberVMG850
Compatible DevicesPersonal Computer
Compact Build Ready140×150×86mm chassis (35% smaller) enables flexible small-form-factor integration.
Power Supply DesignFull Modular
Next-Gen GPU SupportDedicated PCIe 5.1 cable delivers 600W direct power to new graphics cards
Warranty Description5 year manufacturer
Maximum Input Voltage240 Volts (AC)
Full listing titleRosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2x6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan - 5 Year Warranty

Ready to buy?

Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2x6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan - 5 Year Warranty is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $71.20

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2x6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan - 5 Year Warranty
$71.20
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