Skip to contentGo to Product Search
Main Content
Skip to contentGo to Product Search
Main Content
Categories & Filters
Best Buy

/

computer cards & components

/

power supplies

Energy Efficient Computer Power Supply

Computer power supplies are the unsung heroes of the computer hardware world. They're often overlooked, but they're absolutely crucial to the health of your computer. Browse the top-ranked list of energy-efficient computer power supplies below along with associated reviews and opinions. 

Read More
Results
Main Results

  1. MSI - MAG A850GL PCIE5 850W ATX 3.1 &PCIe 5.1 Ready Full Modular 80 Plus Gold Gaming Power Supply - Black

    SKU: J3P7TXLPW5

    Great PSU. Very efficient, runs my RX 580 and B550 motherboard great!...Super stable and very efficient.

    Product Description

    A fully modular black power supply with 850W output, 80 Plus Gold efficiency, and fluid dynamic bearing fan.
    See all Power Supplies
    Your price for this item is $119.99
    Save $10
    The previous price was $129.99

  2. CORSAIR - RMe Series RM1000e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - White

    SKU: J39QHTCVW9

    Product Description

    A fully modular white ATX power supply delivering 1000W, low-noise operation, and Cybenetics Gold efficiency.
    See all Power Supplies
    Your price for this item is $174.99
    Save $25
    The previous price was $199.99

  3. CORSAIR - RMe Series RM1000e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39QHT28XQ

    Product Description

    A fully modular black power supply offering low-noise operation, Cybenetics Gold efficiency, and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $169.99
    Save $20
    The previous price was $189.99

  4. CORSAIR - RMe Series RM1200e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.0 Power Supply - Black

    SKU: J39QHT2RCL

    Small & efficient

    Product Description

    A fully modular black power supply offering 1200W, low-noise operation, and 80 PLUS Gold efficiency.
    See all Power Supplies
    Your price for this item is $234.99

  5. Thermaltake - GF1 (2024) 750W 80 PLUS Gold Fully Modular Power Supply - Black

    SKU: J39ZPC9ZL8

    Product Description

    A fully modular black power supply delivering 750W of 80 PLUS Gold efficiency with ultra-quiet cooling.
    See all Power Supplies
    Your price for this item is $85.99
    Save $14
    The previous price was $99.99

  6. MSI - MAG A650BE 650W Non-Modular 80 Plus Bronze Power Supply - Black

    SKU: J3P7TXPRRX

    Product Description

    A reliable black ATX power supply with 650W output, 80 Plus Bronze efficiency, and quiet cooling fan.
    See all Power Supplies
    Your price for this item is $59.99
    Save $15
    The previous price was $74.99

  7. Thermaltake - Smart W3 700W 80Plus Certified ATX v3.1 Spec Power Supply - Black

    SKU: J39ZPC6J87

    Product Description

    A reliable black ATX 700W non-modular power supply with 80 PLUS efficiency and fluid dynamic bearing fan.
    See all Power Supplies
    Your price for this item is $59.99
    Save $5
    The previous price was $64.99

  8. Thermaltake - GF1 (2024) 850W 80 PLUS Gold Fully Modular Power Supply - Black

    SKU: J39ZPC9ZLF

    Product Description

    A fully modular black power supply delivering 850W of 80 PLUS Gold efficiency with quiet, reliable performance.
    See all Power Supplies
    Your price for this item is $99.99
    Save $10
    The previous price was $109.99

  9. MSI - MAG A650GLS PCIE5 650W ATX 3.1 & PCIe 5.1 Ready Fully modular 80 Plus Gold Energy Efficiency Gaming Power Supply - Black

    SKU: J3P7TX6LL9

    Product Description

    A fully modular black power supply with 80 Plus Gold efficiency, ATX 3.1, and PCIe 5.1 support.
    See all Power Supplies
    Your price for this item is $99.99
    Save $10
    The previous price was $109.99

  10. Thermaltake - Smart W3 500W 80Plus Certified ATX v3.1 Spec Power Supply - Black

    SKU: J39ZPC6J2R

    Product Description

    A reliable black ATX 500W non-modular power supply with 80 PLUS efficiency and PCIe 4.0 support.
    See all Power Supplies
    Your price for this item is $49.99
1-18 of 176 items
0 items

Best Sellers

Related Pages

Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.