Skip to contentGo to Product Search
Main Content
Categories & Filters
Condition
Color
Price
Brand
Brand Character
Brand Compatibility
Categories
Channel
Charging Interfaces
Collection
Computer Power Wattage Range
Connector Type
Cord Length Range
Current Offers
Key Features
Drive Interface
Fan Type
Features
Form Factor
Length of Cable
Model Compatibility
Modular
Number of Outlets
OMS Orderable
Platform Compatibility
Primary Finish Color
PSU Energy Efficiency
Voltage
Best Buy

/

computer cards & components

/

power supplies

8 Pin Power Supplies

Shop 8 pin power supplies for a PC build or upgrade, comparing wattage and connector options to match your components. Check whether you need an 8-pin CPU/EPS connector for the motherboard or an 8-pin PCIe connector for a graphics card—they aren’t interchangeable. Confirm the power supply’s dimensions and required connections before choosing.

Read More
Results
Main Results

  1. CORSAIR - RMe Series RM850e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39QHT23VT

    Best PSU...Still the best PSU's.Works great!...Works great love it easy to say I’d buy it again management is great

    Product Description

    A fully modular black power supply with Cybenetics Gold efficiency and low-noise 120mm rifle bearing fan.
    See all Power Supplies
    Your price for this item is $72.99
    Save $72
    The previous price was $144.99

  2. Insignia™ - Universal 65W Laptop Charger - Black

    SKU: J2FPJKST2C

    Great customer service and great product, I love best buy...Great product...Works great as everything from Best Buy. Love the service

    Product Description

    A universal black laptop charger with 65W output, multiple tips, and built-in overvoltage protection.
    See all Laptop Chargers & Adapters
    Your price for this item is $59.99

  3. Thermaltake - SMART 700W ATX 80 Plus Power Supply - Black

    SKU: J39ZPCS9KG

    Best power supply...Great to use for a mid tower love it best supply ever...Perfect for my new 3060ti thanks to the Best Buy lots of love

    Product Description

    A reliable black ATX power supply delivering 700W with 80 Plus efficiency and quiet 120mm cooling fan.
    See all Power Supplies
    Your price for this item is $59.99

  4. Insignia™ - Universal 180W High-Power Laptop Charger - Black

    SKU: J2FPJKSK3Z

    Works great. I love having the different connections. It will work on multiple devices....great quality charger. And it works great better than the last one I had....Best Buy always has the best products....

    Product Description

    A universal black laptop charger delivering 180W power with multiple tips, surge protection, and a 10-foot cord.
    See all Laptop Chargers & Adapters
    Your price for this item is $89.99

  5. CORSAIR - RMX Series RM1000x Cybenetics Gold Fully Modular ATX Power Supply - Black

    SKU: J39QHTJWGF

    Love this item! Great products at Best Buy! They always have what we need in stock!...Great PSU...Works great with my 5080 founders edition. Best bang for your buck

    Product Description

    A fully modular black ATX power supply offering Cybenetics Gold efficiency and ultra-quiet 140mm fan.
    See all Power Supplies
    Your price for this item is $169.99
    Save $40
    The previous price was $209.99

  6. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    SKU: J39QHTJW78

    Best brands...Love corsair products. Best Buy always has great products. looking forward to my 9070 xt build....Best power supply I've ever used. Works great with my new 5070ti

    Product Description

    A fully modular black ATX power supply offering Cybenetics Gold efficiency and ultra-quiet 140mm fan.
    See all Power Supplies
    Your price for this item is $139.99
    Save $30
    The previous price was $169.99

  7. CORSAIR - RMe Series RM850e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - White

    SKU: J39QHTCVPR

    I love this modular power supply....Its minimalist style and its capacity to allow an specific amount of wires, makes it the best option...I love it. It’s great it can handle everything runs. Smooth cable...

    Product Description

    A fully modular white power supply offering low-noise operation, 80 PLUS Gold efficiency, and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $123.99
    Save $31
    The previous price was $154.99

  8. CORSAIR - RMe Series RM750e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.1 Power Supply - Black

    SKU: J39QHT23ZX

    Best power supply I own...Works great nice refresh on the line definitely the best power supply I own....Best choice!...works great, I always get corsair power supplies they last forever!

    Product Description

    A fully modular black power supply offering low-noise operation, 80 PLUS Gold efficiency, and ATX 3.1 compatibility.
    See all Power Supplies
    Your price for this item is $89.99
    Save $25
    The previous price was $114.99

  9. MSI - MAG A850GL PCIE5 850W Full Modular ATX 3.1 Ready 80 Plus Gold Power Supply - Black

    SKU: J3P7TXLPW5

    Very good best purchases love it gooooooooooooooood...Great quality...This is a very high performance power supply one of the best I’ve ever used.

    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 $109.99
    Save $20
    The previous price was $129.99

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

    SKU: J39QHT28XQ

    Best Power Supply...Definitely one of the best if not the best power supply’s I’ve ever had, I love the fact that the cables...Works great and yhe Best Buy team did a wonderful job getting it ready for...

    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 $132.99
    Save $57
    The previous price was $189.99

  11. Thermaltake - Toughpower GF A3 850W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9RKT

    Good quality product the best part was that Best Buy has inventory available for same day pick up!...Best Power Supply...Best power supply I have ever owned. It has no problems at all.

    Product Description

    A fully modular black power supply with 850W output, 80 PLUS Gold efficiency, and PCIe Gen 5.0 support.
    See all Power Supplies
    Your price for this item is $129.99

  12. Thermaltake - Toughpower GX2 600W 80 PLUS Gold ATX Power Supply - Black

    SKU: J39ZPCSWL4

    great value!...great PSU and came at an amazing deal!!! love it so much....Love it!

    Product Description

    A black ATX power supply delivering 600W, 80 PLUS Gold efficiency, and near-silent cooling with a 120mm fan.
    See all Power Supplies
    Your price for this item is $59.99
    Save $10
    The previous price was $69.99

  13. Thermaltake - Smart BM3 80+ Bronze PCIE Gen 5 ATX 3.0 850W Semi-Modular Power Supply - Black

    SKU: J39ZPC9W4P

    Great...Great PSU, have no issues, great for gaming, best cpu performance!...Works great, fits prefect , plugs fit prefect too love it

    Product Description

    A black semi-modular 850W power supply with 80+ Bronze efficiency and PCIe Gen 5.0 support.
    See all Power Supplies
    Your price for this item is $92.99
    Save $7
    The previous price was $99.99

  14. Thermaltake - Smart BM3 80+ Bronze PCIE Gen 5 ATX 3.0 750W Semi-Modular Power Supply - Black

    SKU: J39ZPC9WTX

    Great Product...Great product and easily installed through the Best Buy Geek Squad!...Thank you best buy for helping me find this. so far it works great....It's a great 750W simimodular power supply

    Product Description

    A black semi-modular 750W power supply with 80+ Bronze efficiency and PCIe Gen 5.0 support.
    See all Power Supplies
    Your price for this item is $79.99
    Save $10
    The previous price was $89.99

  15. Thermaltake - Toughpower GF A3 1050W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9RKV

    Second one worked great. First one was DOA. No issues exchanging it. Thank you Best Buy Augusta ME....Great PSU!!!!...Strong, quiet PS, love the Smart Zero Fan feature.

    Product Description

    A fully modular black power supply with 80 PLUS Gold efficiency and PCIe Gen 5.0 compatibility.
    See all Power Supplies
    Your price for this item is $162.99
    Save $7
    The previous price was $169.99

  16. MSI - MPG A850G PCIE 5 - Full Modular – 80 Plus Gold 850W - 100% Japanese 105°C Capacitors – ATX 3.1 Gaming Power Supply - Black

    SKU: J3P7TX8W5L

    Product Description

    A fully modular black ATX 850W power supply with 80 Plus Gold efficiency and premium Japanese capacitors.
    See all Power Supplies
    Your price for this item is $97.49
    Save $46
    The previous price was $143.99

  17. MSI - MAG A1000GL PCIE5 1000W Full Modular ATX 3.1 Ready 80 Plus Gold Power Supply - Black

    SKU: J3P7TXYWQ6

    Best buy deals...Great item well worth the money paid, best buy is my favorite place...Best bang for you buck....Easy install and I love the 1 to 1 GPU connector! Alot better than my last PSU.

    Product Description

    A fully modular ATX 3.1 gaming power supply with 1000W output, 80 Plus Gold efficiency, and black finish.
    See all Power Supplies
    Your price for this item is $129.99
    Save $5
    The previous price was $134.99

  18. Thermaltake - Toughpower GF A3 1200W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9H3L

    The best of the Best...Overall, this power supply offers great value for the price, reliability, and efficiency....Working well in our gaming pc. needed the best power supply for the 5090 card that could...

    Product Description

    A fully modular black power supply with 1200W output, 80 PLUS Gold efficiency, and PCIe Gen 5 support.
    See all Power Supplies
    Your price for this item is $176.42
    Save $23
    The previous price was $199.99

  19. NZXT - C 850W ATX 3.1 80 Plus Gold Fully Modular Power Supply - Black

    SKU: J3GWJHQJKG

    Best Product to Buy...Best bang for your buck...Love it and will highly recommend it for someone whos upgrading to a current gen gpu and needs the power

    Product Description

    A fully modular black ATX power supply with 850W output, 80 Plus Gold efficiency, and quiet cooling.
    See all Power Supplies
    Your price for this item is $119.99
    Save $25
    The previous price was $144.99

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

    SKU: J39QHT2RCL

    Love best buy products...love it...works fantastic no issues during install, price was great.

    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

  21. Thermaltake - Smart BM3 80+ Bronze PCIE Gen 5 ATX 3.0 650W Semi-Modular Power Supply - Black

    SKU: J39ZPC9W9V

    Great power supply!...[Employee of bestbuy] One of the best budget PSU’s out there, great ease of use and looks nice and clean...Great value...Works great. I love that it is modular at such a low price...

    Product Description

    A black semi-modular ATX 3.0 power supply with 650W output, 80+ Bronze efficiency, and PCIe Gen 5 support.
    See all Power Supplies
    Your price for this item is $32.99
    Save $47
    The previous price was $79.99

  22. Philips - Surge Protector Power Strip, 8 Outlet Extender, 2 USB-A, 1 USB-C, 2100 Joules, 4 Ft Braided Extension Cord - Dark Gray & Arctic White

    SKU: J73JSVZC67

    Love it...I love the way it have a lot of plugs, the USBs makes it a winner!!!!...Great Surge Protector!...-Compact and smaller compared to other surge protectors on market which makes it great for my...

    Product Description

    A dark gray and arctic white surge protector with 8 outlets, 2 USB-A, 1 USB-C, and braided cord.
    See all Surge Protectors
    Your price for this item is $49.99

  23. MSI - MAG A750GL PCIE 5 750W ATX 3.1 Full Modular 80 Plus Gold Gaming Power Supply - Black

    SKU: J3P7TXLPKR

    Product Description

    A fully modular black ATX power supply with 750W output, 80 Plus Gold efficiency, and PCIe 5.0 support.
    See all Power Supplies
    Your price for this item is $107.99
    Save $9
    The previous price was $117.64

  24. Thermaltake - Toughpower GF3 850W 80 PLUS Gold PCIe Gen 5 ATX 3.0 Ready Fully Modular Power Supply - Black

    SKU: J39ZPC9YY9

    Product Description

    A fully modular black power supply with 80 PLUS Gold efficiency, PCIe Gen 5.0 support, and quiet cooling.
    See all Power Supplies
    Your price for this item is $129.99
    Save $4
    The previous price was $133.99
1 - 24 of 196 items
196 items
  2. 2
  3. ...
  4. 9
Next

An 8 pin power supply connection helps deliver the power that demanding PC components need, making connector compatibility an important consideration when choosing a computer power supply. In desktop PCs, “8 pin” commonly refers to either an EPS CPU power connector for the motherboard or a PCIe power connector for a dedicated graphics card. Although both have eight pins, these connectors have different wiring and keying and are not interchangeable. Many ATX power supplies include a 4+4-pin CPU cable and 6+2-pin PCIe cables, allowing the appropriate cable to fit supported motherboard and graphics card connections. Before buying a replacement PSU or upgrading a gaming PC power supply, check your motherboard manual and graphics card specifications for the required connector types and quantities. Some motherboards use additional CPU power connections, while higher-performance graphics cards may require multiple 8-pin PCIe connectors or a newer 16-pin connection. Matching those requirements helps you select an 8 pin power supply solution that supports your specific PC build. Choosing the best power supply for your desktop also means looking beyond the number of connectors to consider total wattage, physical dimensions, efficiency, and cable management. A PCIe 8-pin power connector is specified to deliver up to 150 watts to a graphics card, but that connector rating does not indicate the total output of the PSU or the full power requirements of the system. Use the graphics card manufacturer’s recommended system wattage as a starting point, then account for your processor, storage drives, cooling hardware, and planned upgrades. An 80 PLUS efficiency rating describes energy-conversion efficiency under specified test conditions, while features such as overvoltage, short-circuit, and overtemperature protection are separate considerations worth checking. A fully modular or semi-modular power supply can reduce unused cable clutter, and the correct ATX or SFX form factor helps ensure compatibility with your computer case. For modular PSUs, use only cables explicitly approved for the exact power supply model, because PSU-side wiring can vary even when plugs look identical. Together, these details help you compare 8 pin power supplies for a gaming desktop, creative workstation, or everyday computer without overlooking essential compatibility requirements.

Best Sellers

Related Pages

FAQ

An 8-pin power supply generally refers to a computer power supply unit (PSU) that includes an 8-pin power connector for a processor or graphics card. The term describes a connector the PSU provides, rather than a separate category of power supply.

An 8-pin CPU connector, commonly called an EPS connector, connects to the motherboard to supply processor power. An 8-pin PCIe connector supplies power to a graphics card or another compatible expansion card. These connectors have different pin assignments and keying and are not interchangeable.

A 4+4-pin CPU connector separates into two four-pin sections for motherboard CPU power connections. A 6+2-pin PCIe connector separates into a six-pin section and a two-pin section for graphics card power connections. Both can form an eight-pin connection, but they serve different components.

Modular, semi-modular, and non-modular power supplies can all include 8-pin connectors. Modularity describes whether cables detach from the PSU, not which connectors are included. Fully modular models have detachable power cables, semi-modular models combine fixed and detachable cables, and non-modular models have fixed cables.

Check the PSU specifications or manual for connector counts labeled CPU, EPS, PCIe, 4+4-pin, or 6+2-pin. Cable labels can also help distinguish CPU power from graphics card power. Look for both the number of cables and the number of connectors, since one cable may have multiple connectors.