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ASRock PRO-650B Power Supply - 650W 80 Plus Bronze Certified, ATX 3.1 Ready, 120mm Fan, Full Protection Circuit, 3-Year Warranty9.0Our score 4 photos
ABrandASRockAASRock60 products in our catalogSee all ASRock products →ID DBD-18432

ASRock PRO-650B Power Supply - 650W 80 Plus Bronze Certified, ATX 3.1 Ready, 120mm Fan, Full Protection Circuit, 3-Year Warranty

9.0/10 our score 4.5 (33 ratings on Amazon)

80 PLUS Bronze Efficiency: Provides reliable 650W power with 80 PLUS Bronze certification for energy-efficient operation

Form FactorATX

About this item

  • 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
Category: PC Parts › Internal Power SuppliesRanked #99 of 616 in PC Parts
9.0Our score
Our verdict

80 PLUS Bronze Efficiency: Provides reliable 650W power with 80 PLUS Bronze certification for energy-efficient operation

Ranked #99 in PC Parts · 4 things we like

Quick answer The ASRock PRO-650B Power Supply scores 9.0/10 with us. Amazon owners rate it 4.5 out of 5 across 33 reviews, in line with the 4.5 average of the 82 internal power supplies we track. It was listed from $44.99 to $59.99 on Amazon depending on the option when we last checked in September 2026.

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 compatibility. Built with all-Taiwanese capacitors and comprehensive circuit protections, the PRO-650B ensures system safety while operating quietly with its 120mm cooling fan. The flat cable design simplifies installation and improves chassis airflow.

Ideal for office systems, entry-level gaming builds, and ge

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Product information

22 specifications
Compatible DevicesPersonal Computer
Connector Type Used on CableATX, SATA
Output Wattage650 watts
Form FactorATX
Wattage650 watts
Cooling MethodAir
Power Supply DesignNon-Modular
Number of Fans1
Maximum Input Voltage120 volts_of_alternating_current
Minimum Input Voltage120 volts_of_alternating_current
System Bus Connector TypeATX
Item Dimensions5.51 x 5.91 x 3.39 inches
Model NamePRO-650B
BrandASRock
Number of Items1
Unit Count1 Count
Model Number90-UXR065-BNUAA2
Mfr Part NumberPRO-650B
Warranty Description3 Years Manufacturer
EU Spare Part Availability Duration3 years
Connector TypeATX, SATA
Item dimensions L x W x H5.51 x 5.91 x 3.39 inches

Pros & cons

What we like
  • 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
What could be better

    ASRock PRO-650B Power Supply: questions & answers

    Is the ASRock PRO-650B Power Supply worth buying?

    Yes, it is one of the stronger picks in its group. We score the ASRock PRO-650B Power Supply 9.0 out of 10. Amazon owners rate it 4.5 out of 5 across 33 reviews, in line with the 4.5 average of the 82 internal power supplies we track. The review count is still small, so treat the rating as an early signal.

    How much does the ASRock PRO-650B Power Supply cost?

    It was listed from $44.99 to $59.99 on Amazon depending on the option when we last checked in September 2026. That is cheaper than the $82.99 median for internal power supplies in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.

    What options does the ASRock PRO-650B Power Supply come in?

    Amazon lists 6 options. Style: 650G, 850G, 750B, 650B, 850B, 750G. Pick an option on this page and the button opens exactly that model.

    What are good alternatives to the ASRock PRO-650B Power Supply?

    Similar, well-rated internal power supplies in our catalog: Rosewill VNW 650W 80+ White Certified (9.2/10, 4.6 stars from 16 owners); ASUS ROG Loki SFX-L 1200W Titanium PSU (9.0/10, 4.5 stars from 51 owners); MSI MAG A650BN PCIE5 III (9.0/10, 4.5 stars from 34 owners).

    Rosewill VNW 650W 80+ White CertifiedASUS ROG Loki SFX-L 1200W Titanium PSUMSI MAG A650BN PCIE5 III

    Customer reviews

    All reviews on Amazon
    4.533 global ratings
    5 star71%
    4 star14%
    3 star14%
    2 star0%
    1 star0%

    Breakdown from the 7 most helpful reviews we imported.

    F
    fraylin calderon
    Verified purchaseAugust 11, 2026
    Es buena compra

    Llevo ya 1 mes con esta fuente y no el tenido ningún problema

    M
    Mario And
    Verified purchaseJuly 7, 2026
    AsRock excelente elección

    Me gusto , se ve bien robusta con todas las conexiones que necesitaba, esta funcionando al momento bien

    H
    Hunter R.
    Verified purchaseApril 8, 2026
    Completely adequate, but not extraordinary

    I bought this PSU in a bundle deal, paired with the ASRock RX 9060xt Steel Legend GPU. The PSU took ages to ship, and arrived almost an entire week after the GPU. However, that’s not really relevant to the review. It’s obviously a non-modular PSU, and at this power level naturally only has a 6+2 PCI cable. However, the biggest thing to note is the backwards thinking with the accessory power. A single SATA power cable (triple chain) and while they COULD have had another, they instead opted for a 1 SATA + 2 molex cable instead. This confounds me, because….seriously? Molex? I haven’t even seen a

    B
    Brigith
    Verified purchaseJune 16, 2026
    Recomendado

    Por el momento ha funcionado bien y ha cumplido con lo que se ofrece

    S
    Santiago Vidal Sánchez
    Verified purchaseApril 23, 2026
    EXCELENTE PRODUCTO

    PRODUCTO EN EXCELENTES CONDICIONES, ALTA CALIDAD, CUMPLE CON SU FUNCIÓN, NO ES PREMIUM ESTÉTICAMENTE, PERO FUNCIONALMENTE ES TOP.

    M
    mike
    Verified purchaseMarch 15, 2026
    It alright

    Nothing special. Put in a budget pc and was the cheapest reputable psu I could find out the time

    U
    UnitCharles
    Verified purchaseMay 9, 2026
    ONLY SINGLE 8-PIN PCI POWER CONNECTOR 650W

    Only comes with a single 8-pin PCI power connector.On a 650w PSU this is unacceptable. Most GPUs have dual 8 pin connectors.DONT BUY IF YOU PLAN TO USE A MID RANGE GRAPHICS CARD.THIS PSU IS FOR ENTRY LEVEL GPUS ONLY.SINGLE 8-PIN.

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.