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ASRock PRO-750B Power Supply - 750W 80 Plus Bronze Certified, ATX 3.1 Ready, PCIe 5.1 Compatible (450W), 120mm Fan, Full Protection Circuit, 3-Year Warranty
ASRock

ASRock PRO-750B Power Supply

Bottom line: The ASRock PRO-750B Power Supply is a specs-and-price decision rather than a crowd-consensus one in the power supplies category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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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.

Pros & Cons

Pros

  • ✓ Stable 12V Output: Delivers 62.5A on the +12V rail for consistent CPU and GPU performance
  • ✓ Backed by ASRock's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The ASRock PRO-750B Power Supply offers solid 750W performance with 80 PLUS Bronze efficiency, providing an optimal balance of affordability and functionality for mainstream system builds. Compliant with the latest ATX 3.1 standards, this PSU features a native PCIe 5.1 connector capable of delivering up to 450W to modern graphics cards, alongside traditional PCIe power connectors. The robust +12V rail supplies 62.5A of continuous power, ensuring stable operation for mid-range gaming and productivity systems. Engineered with comprehensive circuit protections and all-Taiwanese capacitors, the…

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SpecPicks Verdict

SpecPicks scored ASRock PRO-750B Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. ASRock'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

  • 750W Bronze Efficiency: 80 PLUS Bronze certified providing reliable power delivery for mid-range system builds
  • ATX 3.1 Compatible: Meets latest ATX standards with 200% power excursion handling for next-gen components
  • PCIe 5.1 Ready: Includes native 12V-2x6 connector supporting up to 450W for modern graphics cards
  • Stable 12V Output: Delivers 62.5A on the +12V rail for consistent CPU and GPU performance
  • Complete Safety Protections: OCP, OVP, UVP, OPP, OTP, and SCP ensure system component safety
  • Quiet Operation: 120mm cooling fan maintains low noise levels during use

Full Specifications

BrandASRock
Wattage750 watts
Dimensions140x150x86mm
Model NamePRO-750B
Unit Count1 Count
Form FactorATX
Model Number90-UXR075-BNUAA2
CompatibilityPC
Connector TypePCI Express, SATA
Cooling MethodAir
Number of Fans1
Output Wattage750 watts
PCIe 5.1 ReadyIncludes native 12V-2x6 connector supporting up to 450W for modern graphics cards
Item Dimensions5.51 x 5.91 x 3.39 inches
Mfr Part NumberPRO-750B
Number of Items1
Quiet Operation120mm cooling fan maintains low noise levels during use
Reliable WarrantyBacked by 3-year manufacturer warranty for peace of mind
Stable 12V OutputDelivers 62.5A on the +12V rail for consistent CPU and GPU performance
Standard ATX Size140x150x86mm dimensions ensure compatibility with most PC cases
Full listing titleASRock PRO-750B Power Supply - 750W 80 Plus Bronze Certified, ATX 3.1 Ready, PCIe 5.1 Compatible (450W), 120mm Fan, Full Protection Circuit, 3-Year Warranty

Ready to buy?

ASRock PRO-750B Power Supply - 750W 80 Plus Bronze Certified, ATX 3.1 Ready, PCIe 5.1 Compatible (450W), 120mm Fan, Full Protection Circuit, 3-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.

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ASRock PRO-750B Power Supply - 750W 80 Plus Bronze Certified, ATX 3.1 Ready, PCIe 5.1 Compatible (450W), 120mm Fan, Full Protection Circuit, 3-Year Warranty
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