Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
80 Plus Platinum Efficiency
Modular Cable Design
High Wattage Output
In this guide
Finding a reliable power supply is crucial for any high performance system build. You need enough wattage to handle demanding components without compromising stability or efficiency during heavy loads.
We compared ten top rated units focusing on modern standards like ATX 3.1 and PCIe 5.1 readiness. Our analysis covers efficiency ratings, cable management, noise levels, and overall build quality.
Each pick highlights specific strengths for different budgets and use cases. Prices and availability change frequently so always check the latest details before making your final purchase decision.
Top 3 Picks for Best 1100W PSU
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector – Black
4.7Editor score
ATX 3.1 Certified
Native 12V-2×6 Connector
Fully Modular Cabling
Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer
4.7Editor score
GaN MOSFET Technology
Intelligent Voltage Stabilizer
Dual Ball Fan Bearings
Top 10 Best 1100W PSU in 2026 Compared
This side by side comparison outlines the key specifications and features of the top ten power supply units available today for high wattage needs.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W Output
80 Plus Platinum
Enterprise Grade Build
Fixed Cable Design
4.5Editor score
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W Output
80 Plus Platinum
Modular Cables
Renewed Condition
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W Output
ATX 3.1
Modular Cables
120mm Fan
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector – Black
1000W Output
Cybenetics Gold
Native 12V-2×6
Low Noise Operation
4.7Editor score
Thermaltake Toughpower GF A3 1050W, True 600W 12V-2×6 Connectors on PSU & NVIDIA RTX 50 Series, ATX 3.1/PCI-E 5.1, 80+ Gold, SLI/Crossfire Ready Power Supply, PS-TPD-1050FNFAGU-L, 10 Year Warranty
1050W Output
80 Plus Gold
10 Year Warranty
ATX 3.1
4.5Editor score
Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer
1000W Output
80 Plus Platinum
GaN MOSFET
Intelligent Voltage Stabilizer
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W Output
Cybenetics Gold
ATX 3.1
Fully Modular
4.5Editor score
MSI MPG A1000GS PCIE5 II, Fully Modular Gaming 1000W Power Supply, 80+ Gold, Dual 12V-2×6 Cables, Server-Grade Capacitor, ATX 3.1 & PCIe 5.1 Ready, Low-Noise, 8-pin PCIe x 3, 10 Year Warranty
1000W Output
80 Plus Gold
10 Year Warranty
Dual 12V-2×6
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W Output
80 Plus Platinum
Zero RPM Mode
140mm Fan
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W Output
80 Plus Gold
7 Year Warranty
Zero RPM Mode
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (PR21C) – Best Enterprise Grade Power
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W Continuous Power
80 Plus Platinum Rated
Server Grade Components
Fixed Cable Configuration
This Dell power supply brings server grade reliability to high wattage desktop builds. It offers a massive 1100W output with an 80 Plus Platinum rating for excellent energy efficiency.
Pros
- Extremely high wattage output
- Proven reliability in server racks
- High efficiency reduces heat
- Solid build quality materials
- Cost effective for bulk builds
Cons
- Non modular cable management
- May lack modern connectors
- Noise levels under load
- Physical size is large
- Lacks consumer warranty terms
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The unit is designed for continuous operation in demanding environments. Its internal components are selected for longevity and stability under heavy loads over extended periods of time.
While reliable the fixed cable design can make routing difficult in tight cases. It also lacks the modern connectors found on newer consumer units which may limit compatibility.
This PSU is ideal for users needing raw power and reliability for workstations. It delivers stable performance for demanding tasks where efficiency and uptime are critical priorities.
Server Grade Reliability
Designed for data centers this unit handles continuous heavy loads without degradation ensuring long term stability for critical systems.
High Efficiency Operation
The Platinum rating ensures minimal energy waste reducing electricity costs and heat output during extended usage sessions.
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2. Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed) – Best Value Power Solution
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W Continuous Power
80 Plus Platinum Rated
Modular Cable Design
Renewed Condition Unit
This renewed Dell unit offers massive wattage at a fraction of the cost of new consumer PSUs. It maintains the 1100W output and Platinum efficiency while adding modular cables for easier installation.
Pros
- Excellent value for money
- Modular cables for clean build
- High efficiency Platinum rating
- Massive power headroom
- Great for budget builds
Cons
- Renewed unit risks
- Limited warranty coverage
- Check connector availability
- Case fit considerations needed
- Variable quality consistency
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The modular design significantly improves cable management compared to fixed wire units. Users can connect only what they need reducing clutter inside the case for better airflow.
Buying renewed means there is some risk regarding component condition and remaining lifespan. Always check return policies and ensure you verify compatibility with your specific components before installing.
For budget conscious builders needing extreme power this is a compelling option. It delivers enterprise level specs at a price point that enables other parts upgrades in your build.
Modular Convenience
The modular cabling allows you to plug in only necessary wires keeping your build clean and improving internal airflow significantly.
Cost Effective Power
Purchasing a renewed unit saves money while still providing high wattage and efficiency suitable for demanding gaming or workstation systems.
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3. CORSAIR RM1000e (2025) – Best Modern ATX 3.1 Value
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W Continuous Power
ATX 3.1 Certified
Fully Modular Cabling
120mm Rifle Fan
The RM1000e brings ATX 3.1 compliance to a budget friendly price point. It is designed to handle the transient power spikes of modern GPUs with its PCIe 5.1 readiness and robust internal design.
Pros
- ATX 3.1 certified
- Handles power excursions
- Fully modular design
- Whisper quiet operation
- Modern warranty support
Cons
- 1000W not 1100W
- Lower rated capacitors
- Basic cable quality
- Slightly higher cost
- Limited cable length
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Its 120mm rifle bearing fan ensures very low noise levels even when the system is under load. The fully modular cabling keeps your build clean and makes installation straightforward for most users.
While it lacks the premium capacitors of higher end models it still offers dependable performance for most gaming and creator setups. The efficiency is solid though not the highest in its class.
This PSU is great for those building a new system who need modern standards without overspending. It balances cost and features effectively for general high performance desktop needs.
ATX 3.1 Ready
Compliant with the latest power standard this unit can withstand double power excursions protecting your system from GPU spikes.
Silent Performance
A calculated fan curve keeps noise to a minimum so you can focus on your game or work without distraction.
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4. CORSAIR RM1000x (2025) – Best Overall Power Supply
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector – Black
1000W Continuous Power
Native 12V-2×6
Cybenetics Gold Rated
Embossed Cables
The RM1000x stands out with its native 12V-2×6 connector eliminating the need for adapters with new GPUs. This modern feature ensures safe and efficient power delivery to next generation graphics cards right out of the box.
Pros
- Native 12V-2×6 connector
- Silent low noise design
- Flexible embossed cables
- Solid efficiency ratings
- Reliable brand reputation
Cons
- 1000W vs 1100W need
- No extra cable set
- Price point mid range
- Fan curve is fixed
- Cable length is moderate
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Its fully modular design with ultra flexible embossed cables makes routing exceptionally easy. The low noise fan ensures your system runs quietly which is perfect for quiet home office or gaming environments.
While it is slightly below the 1100W mark it offers enough headroom for most high end builds. The efficiency is solid and the build quality is consistent with what is expected from Corsair.
This PSU is our top recommendation for most users wanting modern features and reliability. It strikes the best balance between performance, noise, and ease of installation for current and future systems.
Native Connector Support
With a native 12V-2×6 cable you avoid adapters that add complexity and risk of connection issues with high end GPUs.
Premium Cabling
The embossed cables are flexible and look great making it easy to hide wires behind the motherboard tray for a clean build.
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5. Thermaltake Toughpower GF A3 – Best Warranty and Connector Features
Thermaltake Toughpower GF A3 1050W, True 600W 12V-2×6 Connectors on PSU & NVIDIA RTX 50 Series, ATX 3.1/PCI-E 5.1, 80+ Gold, SLI/Crossfire Ready Power Supply, PS-TPD-1050FNFAGU-L, 10 Year Warranty
1050W Continuous Power
ATX 3.1 Ready
80 Plus Gold Efficiency
10 Year Warranty
Thermaltake offers a competitive unit with a generous ten year warranty that signals confidence in durability. It meets the ATX 3.1 standard and is ready for future GPUs with its dedicated 12V-2×6 connectors.
Pros
- Ten year warranty included
- Supports next gen GPUs
- Solid build quality
- Good efficiency performance
- Affordable for features
Cons
- Cable length may vary
- Fan noise under load
- Basic internal design
- Price above budget options
- Connector orientation fixed
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The 1050W output provides plenty of room for overclocking and multiple high end components. Its 80 Plus Gold efficiency ensures energy savings and reduced heat output during daily usage cycles.
While it may not be the quietest on the market it delivers reliable performance for most builders. The price point makes it a strong contender for those seeking long term protection.
This PSU is best for users who prioritize warranty coverage and future proofing. It balances current needs with upcoming tech requirements at a reasonable cost for most gaming setups.
Ten Year Coverage
The ten year warranty provides peace of mind protecting your investment against defects and failures for a decade.
Future Ready Ports
True 600W 12V-2×6 connectors on the unit itself simplify connections to the latest graphics cards without extra adapters.
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6. Asus ROG Strix 1000W Platinum – Best Premium High End Power
Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer
1000W Continuous Power
GaN MOSFET Tech
80 Plus Platinum Rated
GPU First Voltage Sense
The ROG Strix is a premium unit featuring GaN MOSFETs for superior efficiency and heat reduction. Its intelligent voltage stabilizer delivers cleaner power to your GPU ensuring smoother gameplay and performance.
Pros
- GaN MOSFET efficiency
- Premium white design
- Intelligent voltage stabilizer
- Silent low noise fan
- Top tier build quality
Cons
- High price point
- Limited cable length
- Overkill for standard builds
- Fan may spin at load
- Complex internal layout
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With a white aesthetic and platinum efficiency this PSU looks great in modern builds. The 0dB technology allows the fan to stop spinning completely during light loads for total silence.
While expensive it offers features and build quality unmatched by standard units. The dual ball bearings in the fan promise longevity that matches the high cost of the component.
This PSU is ideal for enthusiasts who demand the best and want a stylish look. It is perfect for high end gaming rigs or creative workstations where every watt counts.
GaN Efficiency
Gallium Nitride MOSFETs allow for a smaller footprint and better thermal performance while maintaining high efficiency under load.
Voltage Stabilization
Patented intelligent voltage stabilizer optimizes delivery specifically for the GPU ensuring consistent performance without spikes.
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7. CORSAIR RM1000x ATX 3.1 – Best Modern Standard Power
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W Continuous Power
ATX 3.1 Compliant
Cybenetics Gold Efficiency
Fully Modular Design
This RM1000x variant continues the legacy of reliable power with modern ATX 3.1 standards. It supports PCIe 5.1 readiness and provides stable power for high end graphics cards in gaming setups.
Pros
- ATX 3.1 compliant
- Low noise operation
- Reliable brand choice
- Easy cable management
- Efficient power delivery
Cons
- 1000W limit
- Price fluctuates often
- Cable color fixed
- No white option
- Standard fan bearing
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Cybenetics Gold certification ensures efficient energy use which reduces heat and electricity consumption. The fully modular cables make it simple to route wires neatly inside your PC case.
It is a solid choice for builders who need a dependable power source without excessive cost. While not the quietest it offers consistent performance that suits most high end gaming and workloads.
This PSU is best for standard gaming rigs needing modern features. It delivers a balance of reliability and efficiency that meets current hardware demands without unnecessary frills.
ATX 3.1 Compliance
Fully compliant with the latest standard this PSU resists transient spikes from powerful GPUs ensuring safe operation.
Efficient Operation
The Cybenetics Gold rating helps reduce wasted energy keeping your system cooler and costs lower over time.
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8. MSI MPG A1000GS PCIE5 II – Best Gaming Focused Power
MSI MPG A1000GS PCIE5 II, Fully Modular Gaming 1000W Power Supply, 80+ Gold, Dual 12V-2×6 Cables, Server-Grade Capacitor, ATX 3.1 & PCIe 5.1 Ready, Low-Noise, 8-pin PCIe x 3, 10 Year Warranty
1000W Continuous Power
Dual 12V-2×6 Cables
10 Year Warranty
Server Grade Capacitors
MSI provides a gaming focused unit with dual 12V-2×6 cables to simplify connections for high power GPUs. It includes server grade capacitors designed to last longer and perform consistently over many years.
Pros
- Dual 12V-2×6 cables
- Server grade components
- Low noise design
- Strong warranty included
- Ready for RTX 50
Cons
- Price higher than base
- Fan noise at high load
- Basic cable quality
- Limited efficiency rating
- Connector length fixed
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ATX 3.1 and PCIe 5.1 readiness make this a solid choice for future builds. The ten year warranty further emphasizes the confidence MSI has in its long term durability and reliability.
While it may not be the most efficient it offers robust protection against power fluctuations. The low noise design ensures it does not distract during gaming sessions or quiet work.
This PSU is ideal for gamers planning to upgrade to next gen graphics cards. It delivers the necessary power and connectors for modern builds at a competitive price point.
Dual Connector Support
Two native 12V-2×6 cables reduce clutter and simplify connections for GPUs that require high power input.
Long Term Durability
Server grade capacitors and a ten year warranty ensure this unit lasts through years of heavy gaming or work use.
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9. be quiet! Power Zone 2 – Best Silent High Efficiency PSU
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W Continuous Power
80 Plus Platinum Rated
Zero RPM Cooling Mode
140mm Pure Wings Fan
be quiet! is renowned for silent systems and this PSU delivers on that promise with a massive 140mm fan. The Zero RPM mode ensures it remains silent during light loads making it perfect for quiet workstations.
Pros
- Extremely silent operation
- High platinum efficiency
- Large 140mm fan
- Zero RPM mode
- ATX 3.1 ready
Cons
- Higher price range
- Heavy physical unit
- Limited cable flexibility
- Fan may spin if load
- Case compatibility check
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Platinum efficiency ratings mean less wasted energy and lower heat output which helps keep your system cool. It is fully ATX 3.1 compliant ready to handle the power needs of next generation graphics cards.
While it carries a higher price the performance and silence justify the cost for those who value a quiet PC. The build quality is solid and the design ensures efficient cooling throughout operation.
This PSU is best for users who prioritize silence and efficiency. It delivers reliable power for demanding systems without adding unnecessary noise to your environment.
Zero RPM Silence
Under light load the fan stops completely ensuring you hear nothing from your power supply during casual use.
Efficient Cooling
A large 140mm fan moves more air at lower speeds keeping temperatures down without excessive noise.
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10. NZXT C1000 Gold Core – Best Value Modern Standard PSU
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W Continuous Power
80 Plus Gold Rated
Zero RPM Mode
135mm FDB Fan
NZXT offers a reliable modern PSU that meets the ATX 3.1 standard at a competitive price. It supports next generation GPUs with its dedicated connectors and ensures efficient energy use with an 80 Plus Gold rating.
Pros
- Solid ATX 3.1 features
- Quiet FDB fan
- Efficient Gold rating
- Modular cable design
- Competitive price point
Cons
- 1000W limit
- Warranty shorter than top
- Cable length average
- Basic cable texture
- Fan curve fixed
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The 135mm fluid dynamic bearing fan ensures quiet operation even under load. Zero RPM mode during light tasks allows for completely silent startup and idle periods which is great for focus.
While it lacks some premium features it provides all the essentials for a stable build. The modular design helps manage cables effectively while keeping the cost accessible for budget minded builders.
This PSU is best for standard gaming rigs needing modern compliance. It delivers stable power and efficiency without the high cost of premium tier units making it a practical choice.
Quiet Operation
Fluid dynamic bearings and a large fan ensure quiet performance that does not distract during critical gaming moments.
Modern Compliance
ATX 3.1 certification ensures this unit can handle the power spikes required by next generation graphics cards.
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Buying Guide – How to Choose the Best 1100W PSU
Selecting the right power supply requires understanding wattage efficiency and modern connectivity needs for your specific hardware.
Wattage Requirements
Ensure your PSU provides enough wattage to support all components including GPU and CPU under peak load. Always leave some headroom for efficiency and future upgrades.
Check your system needs against the PSU rating to avoid shortages during high performance tasks.
Efficiency Ratings
Look for 80 Plus Gold or Platinum ratings to ensure energy is not wasted as heat. Higher efficiency means lower electricity costs and cooler operation over time.
A higher rating reduces heat and power waste which improves overall system longevity.
ATX 3.1 Compliance
Newer standards like ATX 3.1 ensure better protection against power spikes from modern GPUs. This compliance is essential for next generation graphics cards.
Choose a unit that is certified to handle transient power excursions safely.
Connector Types
Verify the PSU has native 12V-2×6 connectors or enough PCIe cables for your GPU. Avoid relying on adapters if possible for stability and safety.
Check the connector count and type to match your hardware requirements directly.
Modular Cabling
Fully modular PSUs allow you to connect only the cables you need. This reduces clutter and improves airflow inside your PC case.
Modular designs simplify installation and help maintain a clean interior.
Noise Levels
Consider the fan size and bearing type for quiet operation. Look for models with Zero RPM modes for silent startup and idle performance.
A quiet fan ensures the PSU does not distract during work or gaming.
Warranty Coverage
A longer warranty like ten years signals confidence in product durability and quality. Check the terms before purchasing to ensure protection.
Always prioritize units with strong warranty support for peace of mind.
Brand Reputation
Choose established brands known for reliable power supplies. Established manufacturers typically offer better quality control and support.
Stick with well known names to ensure consistent performance and reliability.
How to Use and Care for Your 1100W PSU
Always install the PSU in a clean and dust free environment. Avoid static electricity by grounding yourself before handling components.
Ensure all connectors are fully seated to prevent power drops and instability. Double check your wiring before powering on the system.
Clean dust from the fan and vents regularly to prevent overheating. Proper airflow helps extend the life of your power supply.
Frequently Asked Questions
Do I need 1100W for my gaming setup?
If you have a high end GPU and CPU with multiple drives and fans then 1100W provides safe headroom. For single GPU builds 1000W is usually sufficient but check your total system needs carefully.
What is ATX 3.1 certification?
ATX 3.1 ensures the PSU can handle transient power spikes from modern GPUs without failing. It is a safety standard for future proofing your build against power fluctuations.
Is a modular PSU better than non modular?
Yes because modular PSUs let you connect only necessary cables. This reduces clutter and improves airflow making the case look cleaner and run cooler.
How do I check PSU compatibility?
Compare the PSU connectors and wattage against your component requirements. Ensure you have enough PCIe cables and that the case size fits your PSU model.
Does a higher efficiency rating matter?
Yes because higher ratings like Platinum waste less energy as heat. This saves on electricity and keeps your system cooler which is vital for long term stability.
What is the difference between Gold and Platinum?
Platinum units are more efficient than Gold units converting more electricity into usable power. This difference impacts heat and energy usage over time.
How long should a PSU last?
High quality PSUs can last over ten years if kept cool and dust free. Proper maintenance and stable power conditions extend the lifespan significantly.
Should I replace my PSU after a GPU upgrade?
If your old PSU lacks modern connectors or sufficient wattage it is best to replace it. Newer GPUs often need specific cables like 12V-2×6.
Final Thoughts on Choosing the Best 1100W PSU
This guide highlighted top picks for reliability and modern features across various budgets. The CORSAIR and be quiet! options stand out for efficiency and performance.
Prioritize ATX 3.1 compliance and native connectors for future readiness. Safety and stability are just as important as raw power for your build.
Always check current pricing and availability before purchasing to ensure you get the best deal.