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- Best overall: Corsair RM850x 850W Fully Modular ATX Power Supply (2024)
- Best budget: Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply
- Best premium: ASUS ROG Thor 1200W Platinum III Power Supply
- Best for small-form-factor PCs: Corsair SF850 850W SFX Fully Modular Power Supply (2024)
- The Corsair RM850x 850W Fully Modular ATX Power Supply (2024) is a balanced choice for many gaming PCs, with ATX 3.1 support.
- The MSI MAG A850GL PCIE5 850W Power Supply suits buyers seeking an 850W Gold-rated modular unit.
- The Corsair SF850 850W SFX Fully Modular Power Supply (2024) is the compact pick for small-form-factor builds.
- The ASUS ROG Thor 1200W Platinum III Power Supply is a premium option with a 1200W capacity and built-in OLED display.
- Check the connector standard, physical size and system wattage before choosing a power supply.
Power supply Black Friday deals 2026 are a chance to compare dependable PC power supplies by capacity, connector support, efficiency certification and case fit. I researched and compared specs, reviews and owner feedback to highlight seven options for different builds, from compact SFX systems to high-wattage gaming PCs.
The right unit depends on the graphics card, processor and case—not just the wattage printed on the box. My pick for most people is an 850W ATX 3.1 model with a native modern GPU cable. Compare the picks below, then confirm your hardware’s connector and clearance requirements before buying.
How We Picked
- Compared published wattage, ATX standard, GPU connector support and efficiency certification.
- Included options for mainstream, compact and high-wattage PC builds.
- Reviewed owner feedback and product documentation for practical considerations such as modular cables and physical format.
- Prioritized models with clear specifications and a defined use case rather than treating every high-wattage unit as a universal choice.
- Considered upgrade flexibility alongside the needs of a current system.
Comparison Table
| Product | Best for | Capacity | Efficiency | GPU standard |
|---|---|---|---|---|
| Corsair RM850x 850W Fully Modular ATX Power Supply (2024) | Most gaming PCs | 850W | 80 Plus Gold | ATX 3.1 |
| Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply | High-capacity builds | 1000W | 80 Plus Gold | ATX 3.1 |
| be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply | Noise-conscious gaming | 850W | 80 Plus Gold | ATX 3.0 |
| MSI MAG A850GL PCIE5 850W Power Supply | Value-focused gaming | 850W | 80 Plus Gold | ATX 3.0 |
| Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply | 750W gaming builds | 750W | 80 Plus Gold | ATX 3.0 |
| Corsair SF850 850W SFX Fully Modular Power Supply (2024) | Small-form-factor PCs | 850W | 80 Plus Platinum | ATX 3.1 |
| ASUS ROG Thor 1200W Platinum III Power Supply | Premium enthusiast PCs | 1200W | 80 Plus Platinum | ATX 3.1 |
Best Picks Reviewed
#1 · Top pick
Corsair RM850x 850W Fully Modular ATX Power Supply (2024)
The Corsair RM850x 850W Fully Modular ATX Power Supply (2024) is the best all-around choice for mainstream gaming PCs, with 850W capacity and ATX 3.1 support. The Corsair RM850x 850W Fully Modular ATX Power Supply (2024)'s fully modular cables help keep a build tidy.
Best for: Most gaming PCs and balanced upgrades
- Capacity
- 850W
- Efficiency
- 80 Plus Gold
- Standard
- ATX 3.1
- Format
- ATX, fully modular
- ATX 3.1 support
- Fully modular cable layout
- Gold efficiency certification
- ATX format does not suit every compact case
- 850W is excessive for basic office PCs
Is the Corsair RM850x 850W Fully Modular ATX Power Supply (2024) worth buying on Black Friday 2026?
The Corsair RM850x 850W Fully Modular ATX Power Supply (2024) is a strong choice for gaming builds needing modern GPU support and tidy cabling. The Corsair RM850x 850W Fully Modular ATX Power Supply (2024)'s 850W capacity and ATX 3.1 standard give many mainstream systems room for an upgrade.
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#2
Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply
The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply is the best high-capacity pick for demanding gaming PCs, with 1000W output and ATX 3.1 support. Fully modular cabling simplifies installation and future swaps.
Best for: High-end graphics cards and upgrade headroom
- Capacity
- 1000W
- Efficiency
- 80 Plus Gold
- Standard
- ATX 3.1
- Format
- ATX, fully modular
- 1000W capacity for demanding systems
- ATX 3.1 GPU support
- Modular cable connections
- More capacity than modest builds need
- Check case clearance before purchase
Is the Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply worth buying on Black Friday 2026?
The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply is a good fit for a powerful gaming PC or a planned graphics-card upgrade. The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply's 1000W rating and modern standard suit systems that need more headroom than a typical 850W build.
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#3
be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply
The be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply is the best choice for noise-conscious gaming builds, with 850W output and an ATX 3.0 design. The fully modular layout keeps unused cables out of the case.
Best for: Quiet-focused 850W gaming systems
- Capacity
- 850W
- Efficiency
- 80 Plus Gold
- Standard
- ATX 3.0
- GPU cable
- 12VHPWR
- 850W capacity for many gaming systems
- Gold efficiency certification
- Fully modular design
- Uses ATX 3.0 rather than ATX 3.1
- Confirm the GPU cable matches your card
Is the be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply a good Black Friday 2026 buy?
The be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply is a sensible option for a gaming PC that needs an 850W Gold-rated unit. The be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply's 12VHPWR support and modular cables suit compatible builds; check the exact graphics-card connection before ordering.
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#4
MSI MAG A850GL PCIE5 850W Power Supply
The MSI MAG A850GL PCIE5 850W Power Supply is the best value-focused modular pick for mid-to-high-end gaming PCs, with 850W output and PCIe 5 support. The MSI MAG A850GL PCIE5 850W Power Supply's compact ATX design is worth considering for cable-managed builds.
Best for: Value-focused 850W gaming builds
- Capacity
- 850W
- Efficiency
- 80 Plus Gold
- Standard
- ATX 3.0
- Format
- ATX, fully modular
- 850W output for a broad range of gaming PCs
- PCIe 5 GPU power support
- Fully modular cables
- Confirm connector needs for the specific GPU
- Not intended for SFX cases
Is the MSI MAG A850GL PCIE5 850W Power Supply worth buying on Black Friday 2026?
The MSI MAG A850GL PCIE5 850W Power Supply is a practical pick for builders seeking an 850W, Gold-rated, fully modular unit. PCIe 5 support helps with compatible graphics cards, while ATX sizing means buyers need a standard power-supply bay.
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#5
Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply
The Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply is the best lower-capacity option for efficient mainstream gaming builds, with 750W output and ATX 3.0 support. The Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply's modular design helps reduce cable clutter.
Best for: Mainstream gaming PCs with 750W requirements
- Capacity
- 750W
- Efficiency
- 80 Plus Gold
- Standard
- ATX 3.0
- Format
- ATX, fully modular
- 750W capacity for appropriately configured builds
- Gold efficiency certification
- Modular cable connections
- Less headroom than 850W or 1000W models
- Check graphics-card power needs first
Is the Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply good for Black Friday 2026?
The Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply suits a gaming PC whose component requirements fit a 750W unit. ATX 3.0 support and modular cables are useful features, but buyers planning a high-power upgrade should compare higher-capacity options.
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#6
Corsair SF850 850W SFX Fully Modular Power Supply (2024)
The Corsair SF850 850W SFX Fully Modular Power Supply (2024) is the best compact pick for small-form-factor PCs, with 850W output in an SFX format. The Corsair SF850 850W SFX Fully Modular Power Supply (2024)'s ATX 3.1 support brings modern GPU compatibility to a space-saving build.
Best for: Small-form-factor gaming PCs
- Capacity
- 850W
- Efficiency
- 80 Plus Platinum
- Standard
- ATX 3.1
- Format
- SFX, fully modular
- Compact SFX format
- 850W output
- Platinum efficiency certification
- SFX can cost more than a comparable ATX unit
- Confirm case support for SFX and cable reach
Is the Corsair SF850 850W SFX Fully Modular Power Supply (2024) worth buying on Black Friday 2026?
The Corsair SF850 850W SFX Fully Modular Power Supply (2024) is a strong option for compact gaming systems that need substantial power. The Corsair SF850 850W SFX Fully Modular Power Supply (2024)'s SFX size, Platinum certification and ATX 3.1 support make it especially relevant for small-case builds.
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#7
ASUS ROG Thor 1200W Platinum III Power Supply
The ASUS ROG Thor 1200W Platinum III Power Supply is the best premium choice for high-end gaming and enthusiast builds, with 1200W capacity and an integrated OLED display. The ASUS ROG Thor 1200W Platinum III Power Supply's Platinum rating and ATX 3.1 support add useful features for a demanding system.
Best for: Premium, high-wattage enthusiast PCs
- Capacity
- 1200W
- Efficiency
- 80 Plus Platinum
- Standard
- ATX 3.1
- Display
- OLED power display
- 1200W capacity
- Built-in OLED display
- Platinum efficiency certification
- Overkill for most everyday gaming PCs
- Premium features add complexity for simple builds
Is the ASUS ROG Thor 1200W Platinum III Power Supply worth buying on Black Friday 2026?
The ASUS ROG Thor 1200W Platinum III Power Supply is suited to enthusiast PCs that need high capacity and appreciate live power information. The ASUS ROG Thor 1200W Platinum III Power Supply's 1200W rating, OLED display and ATX 3.1 support are more compelling for a premium build than a basic gaming system.
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Which power supply is the best overall pick for Black Friday 2026?
The Corsair RM850x 850W Fully Modular ATX Power Supply (2024) is the best overall pick for many gaming PCs because it combines 850W capacity, modular cables and ATX 3.1 support. Those features cover common build needs without pushing most buyers toward an oversized unit.
The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply is a better match when a high-end graphics card or a future upgrade calls for more headroom. The Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply fits systems whose component specifications call for less capacity. Match the power supply to the full system, not just the GPU.
How much wattage does a gaming PC need?
A gaming PC needs a power supply whose rated capacity meets the combined needs of its processor, graphics card and other components; the seven picks range from 750W to 1200W. The graphics-card maker’s recommendation and a reputable system power calculator are useful starting points.
The MSI MAG A850GL PCIE5 850W Power Supply and Corsair RM850x 850W Fully Modular ATX Power Supply (2024) suit many builds in the 850W class. The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply serves more demanding configurations. Extra wattage alone does not guarantee a better fit, so consider the exact CPU, GPU, drives, cooling and upgrade plans.
What is the difference between ATX 3.0 and ATX 3.1?
ATX 3.0 and ATX 3.1 identify power-supply design standards, and this guide includes 3 ATX 3.0 options alongside 4 ATX 3.1 models. The connector supplied with a specific unit matters as much as the standard name when checking graphics-card compatibility.
For example, the be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply lists a 12VHPWR connection, while newer ATX 3.1 picks support the later generation of GPU power connections. Buyers should verify the supplied cable and the graphics card’s socket in the manufacturer’s documentation. Avoid assuming every unit in a standard family includes the same cable arrangement.
Should I choose a modular power supply?
A fully modular power supply lets builders attach only the cables their system needs, and all 7 picks in this guide use modular cable connections. Fewer unused cables can make assembly and cable routing simpler, especially in a compact or glass-sided case.
The Corsair SF850 850W SFX Fully Modular Power Supply (2024) is a natural fit for a small-form-factor build, while standard ATX models offer more case options. Modular cables are not interchangeable across every power-supply brand or model. Keep the cables that came with the exact unit, and never reuse a cable based on appearance alone.
What should I check before buying a power supply?
Check 4 essentials before choosing a power supply: system wattage, GPU connector, case format and cable clearance. The right unit must fit the case and supply the connections listed for the processor and graphics card.
The Corsair SF850 850W SFX Fully Modular Power Supply (2024) uses the compact SFX format, while the Corsair RM850x 850W Fully Modular ATX Power Supply (2024) is an ATX unit. Confirm the case supports the chosen format and that cables reach their sockets. Then compare efficiency certification, warranty terms and seller details so the model and included accessories match the build.
Buying Guide
Match capacity to your components
Start with the graphics card and processor requirements, then account for the rest of the system. The Thermaltake Toughpower GF A3 750W 80 Plus Gold Power Supply is a 750W option; demanding builds have 1000W and 1200W choices in this guide. Keep sensible headroom without buying capacity your build does not need.
Check the GPU cable and standard
Confirm the connector listed for the exact graphics card and the cable supplied with the power supply. The Corsair RM850x 850W Fully Modular ATX Power Supply (2024) offers ATX 3.1 support, while the be quiet! Pure Power 12 M 850W ATX 3.0 Power Supply lists 12VHPWR. Read the specific product documentation before ordering.
Measure the case format
Check the case manual for supported power-supply formats and maximum length. The Corsair SF850 850W SFX Fully Modular Power Supply (2024) is made for SFX-compatible cases; an ATX unit needs an ATX bay. Also check cable routing space around the drive cage and side panel.
Compare efficiency and features
Use efficiency certification as one comparison point, not the only measure of quality or suitability. Gold-rated models cover several wattage levels here, while the Corsair SF850 and ASUS ROG Thor 1200W Platinum III carry Platinum ratings. Decide whether features such as an OLED display or modular cables matter to your build.
Review the exact listing
During Black Friday 2026, verify the full model name, wattage, included cables and seller before checkout. Product names can differ by revision or region. Compare the listing against the manufacturer’s specification page, and check warranty coverage and return terms for the exact unit.
FAQ
What is the best power supply for a gaming PC in Black Friday 2026?
The Corsair RM850x 850W Fully Modular ATX Power Supply (2024) is a strong all-around choice for many gaming PCs. Its 850W capacity, Gold certification and ATX 3.1 support cover common needs, though buyers should confirm the wattage and GPU connector required by their own components.
Is 850W enough for a gaming PC?
An 850W unit suits many gaming PCs, but the correct capacity depends on the graphics card, processor and other components. The MSI MAG A850GL PCIE5 850W Power Supply and Corsair RM850x 850W Fully Modular ATX Power Supply (2024) are two options. Check the GPU maker’s requirements before choosing.
Is an ATX 3.1 power supply better for a new PC?
An ATX 3.1 model is a useful option for a new build when its supplied GPU cable matches the graphics card. The Seasonic FOCUS GX-1000 ATX 3.1 1000W Fully Modular Power Supply supports a high-capacity build, while individual system needs still determine the right wattage.
Which power supply is best for a small PC case?
The Corsair SF850 850W SFX Fully Modular Power Supply (2024) is the compact pick in this guide because its SFX format suits compatible small-form-factor cases. Confirm the case supports SFX, check cable reach and verify that 850W meets the installed components’ requirements.
Is a Gold-rated power supply enough for gaming?
An 80 Plus Gold rating is a common efficiency certification and appears on several gaming-ready options in this guide. The MSI MAG A850GL PCIE5 850W Power Supply combines Gold certification with 850W capacity. Choose based on build compatibility, product quality and warranty as well as certification.
Do modular power supplies include all required cables?
A modular power supply includes cables intended for its specific model, but the exact set differs by product. Check the listing and manufacturer specifications for the connectors your CPU and GPU need. Use only cables approved for that power supply, since modular cables are not universally interchangeable.