Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High efficiency Platinum rating
Modular cable management system
Ideal for graphics intensive systems
In this guide
Finding the right power supply is crucial for any high-performance computer build. A quality unit ensures stability, efficiency, and longevity for your expensive components like graphics cards and processors.
We analyzed ten top-rated models based on efficiency ratings, modularity, connector types, and user feedback. Each entry offers unique benefits for different budgets and system requirements today.
Every pick highlights key specs and performance traits to help you decide quickly. Keep in mind that prices and stock fluctuate frequently so always verify details before purchasing online.
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
Native 12V-2×6 connector
Cybenetics Gold efficiency certified
ATX 3.1 compliant standard
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 inside
Intelligent voltage stabilizer feature
Premium white aesthetic design
Top 10 Best 1100W PSU in 2026 Compared
This side-by-side comparison lists all ten selected power supplies with their core specifications and links for quick reference during your research process.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W total output capacity
80 Plus Platinum certified
Standard ATX form factor
Compatible with PowerEdge servers
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W power output wattage
Modular cable connections included
High efficiency Platinum rating
Ideal for intensive gaming
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W continuous power delivery
ATX 3.1 certified standard
Fully modular cabling design
120mm rifle bearing 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 rated power output
Native 12V-2×6 connector
Cybenetics Gold efficiency rated
ATX 3.1 compliant design
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 total power capacity
12V-2×6 connectors included
ATX 3.1 standards support
10 Year manufacturer warranty
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 power supply output
GaN MOSFET efficiency tech
Intelligent voltage stabilizer built
White aesthetic casing design
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W continuous power rating
Native 12V-2×6 connector
ATX 3.1 compliance ready
Fully modular cable system
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 power output wattage
Dual 12V-2×6 cables
Server-grade capacitors inside
10 Year warranty coverage
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W power output capacity
80 PLUS Platinum certified
Semi-passive zero rpm cooling
140mm pure wings fan
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W power delivery rating
80 PLUS Gold efficiency
FDB fan with zero rpm
Fully modular cable design
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (PR21C) – High Capacity Server Power
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W total output
80 Plus Platinum cert
Standard ATX form
PowerEdge compatible
This unit is a robust power solution designed primarily for enterprise server environments. It delivers a substantial 1100W output ensuring stable power for heavy computational loads without failure.
Pros
- High power output
- Platinum efficiency rating
- Server grade reliability
- Proven platform design
Cons
- Limited retail availability
- Server focused connectors
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The 80 Plus Platinum certification guarantees high energy efficiency reducing electricity costs over time. Its construction prioritizes durability and consistent performance under sustained high load conditions typical of data centers.
While it lacks consumer-friendly modular cables it remains a solid choice for specific server builds. The form factor matches Dell PowerEdge chassis perfectly avoiding compatibility issues during installation.
Buyers seeking raw wattage for specialized workstations may find this appealing despite its niche target. It offers a reliable foundation for systems where uptime and power stability are paramount priorities.
Enterprise Reliability
Built for 24/7 operation in server racks demanding continuous uptime without failure.
High Efficiency
Platinum rating ensures minimal energy waste converting most electricity into usable power.
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2. Dell 1100W EPP 80+ Platinum PSU (CMPGM) – Best Budget 1100W PSU
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W power wattage
Modular cable support
80 Plus Platinum cert
Renewed condition option
This renewed unit offers an accessible entry point into high wattage power supplies. It retains the core benefits of the original model including platinum efficiency and modular connectivity options.
Pros
- Exceptional value pricing
- High efficiency platinum
- Modular cable management
- Strong user ratings
Cons
- Renewed condition risks
- Limited warranty coverage
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Users praise its ability to handle graphics intensive gaming systems without voltage drops or instability. The modular design allows for cleaner cable management improving airflow inside the PC chassis.
Though it is sold as renewed meaning it has been inspected and refurbished there are no guarantees compared to new units. Buyers should verify return policies to ensure satisfaction with the condition.
For budget conscious builders needing significant power headroom this presents a compelling option. It balances cost and performance effectively making high wattage power accessible to more gamers.
Cost Effective
Provides premium wattage and efficiency at a fraction of the cost of new units.
Modular Flexibility
Allows users to connect only necessary cables reducing clutter and improving airflow.
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3. CORSAIR RM1000e (2025) – Modern ATX 3.1 Ready PSU
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W continuous power
ATX 3.1 certified
Fully modular design
120mm silent fan
The RM1000e represents Corsair's commitment to modern power standards. It fully complies with ATX 3.1 ensuring compatibility with the latest graphics cards requiring significant transient power.
Pros
- Future proof ATX 3.1
- Fully modular cabling
- Quiet operation at load
- High quality caps
Cons
- Slightly higher price
- Standard black design
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Its fully modular design makes building a clean system straightforward by allowing users to attach only necessary cables. The rifle bearing fan ensures low noise levels even when the system is under heavy load.
While it does not carry the flagship RMx badge it delivers core performance and reliability expected from the brand. The 105°C rated capacitors add a layer of durability ensuring stable electrical performance over time.
This unit is ideal for builders planning to upgrade GPUs in the near future. It offers a balance of efficiency, quiet operation, and modern connectivity without unnecessary premium features.
Modern Compliance
ATX 3.1 compliance prepares your system for next generation high power graphics cards.
Quiet Operation
Specially calculated fan curves keep noise minimal even at high power draw levels.
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4. CORSAIR RM1000x – Editor's Choice 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
1000W rated output
Native 12V-2×6 connector
Cybenetics Gold rated
ATX 3.1 compliant
This model stands out with its native 12V-2×6 connector eliminating the need for adapter cables. This direct connection enhances safety and stability for the latest high-performance graphics cards.
Pros
- Native GPU connector ready
- Cybenetics Gold efficiency
- Highly flexible cables
- Proven reliability record
Cons
- Premium price point
- Requires ATX 3.1 case
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Cybenetics Gold certification confirms its high efficiency meaning less heat generation and lower energy bills. The embossed cables with low-profile combs make routing easier and result in a cleaner build aesthetic.
Users appreciate the reliability and low noise profile of this unit across various usage scenarios. It handles transient power spikes well which is crucial for modern components demanding sudden bursts of power.
Recommended for enthusiasts who value future proofing and build quality above all else. It provides a robust foundation for high-end gaming rigs and content creation workstations alike.
Direct GPU Connect
Native 12V-2×6 connector ensures safe stable power delivery to next gen graphics cards.
Build Quality
Embossed cables with combs simplify routing and improve overall cable management aesthetics.
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5. Thermaltake Toughpower GF A3 1050W – Future Ready Power Supply
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 power capacity
ATX 3.1 standard ready
12V-2×6 connector
10 Year warranty
This unit delivers 1050W continuous power making it suitable for multi GPU setups or overclocked CPUs. It adheres to ATX 3.1 standards ensuring readiness for the next wave of GPUs.
Pros
- High wattage capacity
- Compliant with new standards
- Long warranty coverage
- Gold efficiency certified
Cons
- Cable quality varies
- Mid-range pricing
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The inclusion of 12V-2×6 connectors simplifies setup for NVIDIA RTX 50 Series cards. Its 80 Plus Gold rating balances efficiency and cost providing reliable power without excessive heat.
A ten year warranty offers peace of mind regarding longevity and component quality. However cable quality might not match top tier competitors requiring careful cable management during installation.
Ideal for users needing extra headroom for multi GPU systems. It offers a solid balance of features and warranty support for serious gamers and professionals.
High Capacity
1050W output supports demanding multi GPU systems and extreme overclocking needs easily.
Warranty Support
A decade of coverage reflects confidence in internal component quality and reliability.
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6. Asus ROG Strix 1000W Platinum White – Best Premium 1100W PSU
Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer
1000W output power
GaN MOSFET technology
Intelligent voltage stabilizer
80 Plus Platinum rating
The ROG Strix series brings premium aesthetics and cutting-edge technology to the desktop. It uses GaN MOSFETs which improve efficiency and internal thermal management significantly compared to standard units.
Pros
- Advanced GaN technology
- Intelligent voltage stabilization
- Premium white aesthetic
- Silent operation mode
Cons
- High price point
- White cables cost extra
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The patented intelligent voltage stabilizer enhances power delivery to the GPU ensuring smoother gameplay. Large heatsinks and dual ball fan bearings contribute to a quieter and cooler operation environment.
This unit stands out for its white design perfect for light themed builds. It supports modern standards including ATX 3.1 making it versatile for future hardware upgrades.
Recommended for users seeking top-tier performance and visual appeal. While expensive it justifies the cost with superior component quality and unique performance-enhancing features.
GaN Technology
Gallium Nitride MOSFETs offer up to 30% better efficiency and cooler internal operation.
Visual Appeal
All white design with premium finish suits high-end custom builds needing aesthetic unity.
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7. CORSAIR RM1000x – High Efficiency ATX 3.1 Power Unit
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W continuous power
Cybenetics Gold certified
Native 12V-2×6
ATX 3.1 ready
This RM1000x variant focuses on delivering high efficiency and modern compliance. The Cybenetics Gold rating ensures it operates with minimal energy loss under typical load conditions.
Pros
- Cybenetics Gold efficiency
- Low noise operation
- Modern GPU connector
- Fully modular design
Cons
- Black only option
- Standard non-axial fan
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Its native 12V-2×6 connector eliminates adapters for newer graphics cards reducing potential failure points. The fully modular cabling allows for optimized airflow and cleaner builds inside the chassis.
Noise levels remain low thanks to efficient fan curve management during operation. It provides steady voltage regulation suitable for stable gaming and productivity tasks alike.
A solid choice for those wanting reliability and efficiency without extra frills. It serves well as a foundation for mid to high end system builds.
Efficiency Focus
Cybenetics Gold certification reduces energy waste and keeps operating temperatures low.
Cleaner Build
Fully modular cables reduce clutter and simplify routing inside standard PC cases.
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8. MSI MPG A1000GS PCIE5 II – Gaming Focused Power Supply
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 power rating
Dual 12V-2×6 cables
Server-grade capacitors
10 Year warranty
This MSI unit is engineered for gaming systems requiring stable power under load. It includes dual 12V-2×6 cables offering flexibility for connecting high-end graphics cards directly.
Pros
- Dual 12V-2×6 connectors
- Industrial level protection
- Flexible jacket cables
- Strong warranty support
Cons
- Fan noise at peak
- Mid-range efficiency
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Server-grade capacitors enhance longevity and stability ensuring the unit lasts through years of use. Industrial level protection mechanisms guard against over-voltage and short circuits effectively.
The embossed jacket cables are flexible making routing easier within tight cases. Users appreciate the included ten year warranty which reflects confidence in build quality and performance.
A good option for gamers prioritizing safety and connector versatility. It balances performance features with practical protection measures for daily use.
Component Quality
Server-grade capacitors provide long-term stability and durability for heavy gaming loads.
Connector Variety
Dual 12V-2×6 cables allow direct GPU connection without needing adapters or extensions.
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9. be quiet! Power Zone 2 1000W – Silent Power Performance
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W output power
80 PLUS Platinum cert
Semi-passive cooling
140mm fan size
This power supply excels in silent operation thanks to its semi-passive cooling technology. The large 140mm fan runs only when necessary ensuring quiet operation during light workloads.
Pros
- Semi-passive zero rpm
- Platinum efficiency rating
- Large 140mm fan
- German engineering design
Cons
- Long cooldown period
- Higher cost than gold
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Its Platinum certification guarantees high efficiency reducing power waste and heat output. The design prioritizes acoustic comfort making it suitable for quiet media or office PCs.
The fan stops completely under low load which enhances silence but requires a cooldown period before restarting. This design is intentional to prevent annoying start stop cycles.
Recommended for users prioritizing silence above all else. It delivers excellent efficiency and quiet operation for a premium build experience.
Silent Cooling
Zero RPM mode ensures fans stay off during light loads for total silence.
Efficiency Class
Platinum certification ensures high energy conversion rates reducing heat and power use.
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10. NZXT C1000 Gold Core – Efficient Modular Power Source
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W power output
ATX 3.1 certified
80 PLUS Gold efficient
FDB fan with zero
The NZXT C1000 offers strong performance with a focus on silence and efficiency. Its 80 PLUS Gold and Cybenetics Platinum ratings indicate excellent energy conversion rates.
Pros
- Zero RPM fan mode
- Cybenetics Platinum rated
- Fully modular design
- Low noise operation
Cons
- Standard cable length
- Black color only
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The FDB fan with zero RPM mode ensures quiet operation during idle periods. This feature helps maintain a peaceful environment for both gaming and media tasks.
Fully modular cabling allows for custom cable management reducing clutter inside the chassis. Its ATX 3.1 certification makes it compatible with future graphics cards requiring new power connectors.
A solid choice for builders seeking reliable performance and low noise. It provides balanced features for modern high-performance PC builds.
Quiet Operation
Zero RPM mode stops the fan completely during light loads for total silence.
Future Ready
ATX 3.1 certification ensures compatibility with next generation graphics cards and standards.
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Buying Guide – How to Choose the Best 1100W PSU
Selecting the right power supply involves considering wattage efficiency connectors and build quality. Use these factors to ensure compatibility and stability for your system.
Wattage and Headroom
Ensure the PSU provides enough power for your components plus extra headroom. A 1100W unit allows room for future upgrades and high power GPUs.
Always check your total system draw and add at least 20 percent extra wattage for safe operation.
Efficiency Ratings
Look for 80 Plus Gold or Platinum certification to minimize energy waste. Higher efficiency means less heat and lower electricity costs over time.
Prioritize units with high efficiency ratings to ensure stable power conversion under load.
Connector Types
Verify the PSU has the necessary connectors for your graphics card. Newer units include native 12V-2×6 connectors for modern GPUs.
Avoid units requiring adapter cables for direct GPU power to reduce potential failure points.
Modularity
Fully modular power supplies allow you to connect only necessary cables for cleaner builds. This improves airflow and aesthetics inside the case.
Choose fully modular models to simplify cable management and improve cooling.
ATX 3.1 Compliance
ATX 3.1 compliant units handle transient power spikes from modern graphics cards better. This standard ensures your PSU can cope with sudden power demands.
Always select an ATX 3.1 certified PSU for future proofing and stability.
Build Quality
High quality internal components like Japanese capacitors enhance reliability and lifespan. Check for robust protection circuits to safeguard your hardware.
Invest in units with premium capacitors and protection features for long term safety.
Noise Levels
Consider the fan size and bearing type for acoustic performance. Larger fans generally run slower and quieter than smaller ones.
Look for semi-passive cooling features to reduce noise during light usage periods.
Warranty Support
A longer warranty period indicates confidence in the product's durability. Aim for at least 7 years of coverage for peace of mind.
Check the warranty terms to ensure you are covered for any potential defects.
How to Use and Care for Your 1100W PSU
Install the PSU in your case ensuring the fan faces the correct direction for airflow. Secure it firmly with screws to prevent vibration and noise.
Connect only the necessary cables to avoid clutter and improve airflow inside the chassis. Use modular power supplies to optimize your cable management.
Regularly clean dust from the PSU intake vents to maintain optimal cooling performance. Ensure proper ventilation around the case to prevent overheating.
Frequently Asked Questions
Is a 1100W PSU necessary for gaming?
A 1100W PSU provides ample power for high-end gaming builds with multiple GPUs or extreme overclocking. It ensures stability and headroom for future upgrades.
What does ATX 3.1 mean for a PSU?
ATX 3.1 is a newer power standard ensuring better handling of transient power spikes from modern graphics cards. It includes native 12V-2×6 connectors.
Are modular PSUs better than non-modular?
Modular PSUs offer better cable management and airflow by allowing you to connect only needed cables. This results in cleaner builds and improved cooling.
What is the benefit of 80 Plus Platinum certification?
Platinum certification guarantees higher efficiency than lower ratings reducing energy waste and heat. This lowers electricity costs and keeps the system cooler.
Can I use a 1100W PSU for a budget build?
Yes but it may be overkill and more expensive than needed. A lower wattage unit might suffice depending on your components and budget constraints.
How long does a quality PSU typically last?
High quality PSUs with good capacitors can last 7 to 10 years or more. Regular maintenance and proper ventilation extend their lifespan significantly.
Do I need a 12V-2×6 connector?
Yes if you plan to use modern NVIDIA RTX 4090 or future 50 series cards. It provides safer and more stable power delivery without adapters.
What warranty should I look for?
Aim for at least 7 years of warranty coverage to ensure you are protected. Premium units often offer up to 10 years of support.
Final Thoughts on Choosing the Best 1100W PSU
We reviewed ten top power supplies offering various balances of wattage efficiency and features. From budget renewed options to premium models the choices cater to different needs.
Prioritize ATX 3.1 compliance and 12V-2×6 connectors for future proofing. Efficiency and build quality ensure long term reliability and stability.
Always check current prices and availability before purchasing as these factors change frequently. Verify compatibility with your specific components before finalizing your selection.