ASRock
ASRock PRO-650B Power Supply
Bottom line: The ASRock PRO-650B Power Supply is a specs-and-price decision rather than a crowd-consensus one in the power supplies category, priced around $44.99 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Flat Cable Design: Enables clean cable management and improved airflow within the case
- ✓ 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-650B Power Supply delivers reliable 650W performance with 80 PLUS Bronze efficiency, making it an excellent choice for budget-conscious builders. Compliant with the latest ATX 3.1 standard, this PSU handles power excursions up to 200% and provides stable operation with modern components. The +12V rail delivers 54.1A of continuous power, sufficient for most mid-range system configurations. While this unit does not include a PCIe 5.1 connector, it features one traditional PCIe 6+2pin connector along with multiple peripheral and SATA connectors for comprehensive system…
SpecPicks Verdict
SpecPicks scored ASRock PRO-650B 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
- 80 PLUS Bronze Efficiency: Provides reliable 650W power with 80 PLUS Bronze certification for energy-efficient operation
- ATX 3.1 Compatible: Meets latest ATX 3.1 standards with 200% power excursion capability for next-generation components
- Stable 12V Output: Delivers 54.1A on the +12V rail for consistent performance with modern CPUs and graphics cards
- Comprehensive Protections: Includes OCP, OVP, UVP, OPP, OTP, and SCP for complete system safety
- Quiet 120mm Cooling: Features a balanced fan design that maintains low noise levels during operation
- Quality Components: Built with all-Taiwanese capacitors for enhanced durability and reliability
Full Specifications
| Brand | ASRock |
|---|---|
| Wattage | 650 watts |
| Dimensions | 140x150x86mm |
| Model Name | PRO-650B |
| Unit Count | 1 Count |
| Form Factor | ATX |
| Model Number | 90-UXR065-BNUAA2 |
| Compatibility | PC |
| Connector Type | ATX, SATA |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 650 watts |
| 3-Year Warranty | Backed by reliable manufacturer support for peace of mind |
| Item Dimensions | 5.51 x 5.91 x 3.39 inches |
| Mfr Part Number | PRO-650B |
| Number of Items | 1 |
| Flat Cable Design | Enables clean cable management and improved airflow within the case |
| Stable 12V Output | Delivers 54.1A on the +12V rail for consistent performance with modern CPUs and graphics cards |
| ATX 3.1 Compatible | Meets latest ATX 3.1 standards with 200% power excursion capability for next-generation components |
| Compatibility Note | Does not include PCIe 5.1 connector; suitable for mid-range builds without high-end graphics cards |
| Full listing title | ASRock PRO-650B Power Supply - 650W 80 Plus Bronze Certified, ATX 3.1 Ready, 120mm Fan, Full Protection Circuit, 3-Year Warranty |
Ready to buy?
ASRock PRO-650B Power Supply - 650W 80 Plus Bronze Certified, ATX 3.1 Ready, 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.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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