GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1 Ready - Fully Modular Power Supply (GP-UD850GM-A PG5)
Gigabyte

850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1 Ready - Fully Modular Power Supply (GP-UD850GM-A PG5)

$89.99 ★★★★½4.8(23 reviews)

*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.

The GP-UD850GM-A PG5 introduces a variety of high-quality materials and top-notch design. Enjoy unrivaled performance with Japanese capacitors, and a +12V Single Rail which will provide exceptional power output and stability for your system.

SpecPicks Verdict

SpecPicks classifies GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1… as a category leader on buyer feedback in the power supplies category, based on 23 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Gigabyte's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Highly rated — 4.8★ average across customer reviews
  • ✓ 850W Capactiy with Single +12V Rail
  • ✓ Backed by Gigabyte's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Limited review volume so far — fewer data points on long-term reliability
  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • 850W Capactiy with Single +12V Rail
  • 80 Plus Gold Certified
  • ATX 3.1 and PCIe Gen 5.0 Ready
  • ATX Form Factor
  • Fully Modular Design
  • Japanese Capacitors

Full Specifications

BrandGIGABYTE
Wattage850 watts
Model NameGP-UD850GM-A PG5
Unit Count1.0 Count
Form FactorATX
Model NumberGP-UD850GM-A PG5
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage850 Watts
Item Dimensions5.9 x 5.5 x 3.4 inches
Mfr Part NumberGP-UD850GM-A PG5
Compatible DevicesDesktop PC, Gaming Workstation, Motherboards (ATX, mATX, ITX), Graphics Cards, Processors, and other internal components
Power Supply DesignFull Modular

Ready to buy?

GIGABYTE 850W PSU - 80 Plus Gold Certified - PCie 5.0 and ATX 3.1 Ready - Fully Modular Power Supply (GP-UD850GM-A PG5) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.

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