Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High Efficiency 80+ Platinum Rating
Modular Cabling for Clean Builds
Ideal for Graphics Intensive Systems
In this guide
Building a powerful PC requires a reliable power supply unit that delivers steady energy without failure. A 1100W PSU offers ample headroom for high-end components and future upgrades.
We analyzed ten top-rated models focusing on efficiency ratings, connector types, and build quality. Our comparison highlights key differences to help you choose the right unit.
Each pick showcases specific strengths like noise levels or warranty terms. Prices change frequently, so check current listings before purchasing your new power supply today.
Top 3 Picks for Best 1100W PSU
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
4.7Editor score
ATX 3.1 Certified Standard
Native 12V-2×6 Connector
Fully Modular Low-Noise Design
Asus ROG Strix 1000W Platinum White PSU
4.7Editor score
GaN MOSFET Efficiency Boost
GPU-FIRST Voltage Stabilizer
ROG Heatsinks for Cooling
Top 10 Best 1100W PSU in 2026 Compared
The following table provides a side-by-side view of all ten models reviewed in this guide. Compare key specifications and features to find the perfect match.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W Power Output
80+ Platinum Efficiency
Server Grade Design
PR21C Model Number
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W High Efficiency
Modular Cable System
Graphics System Ready
Renewed Condition Item
5.0Editor score
Editor's Choice
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply
Fully Modular Design
ATX 3.1 Certified
120mm Rifle Bearing Fan
105C Rated Capacitors
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
Cybenetics Gold Efficiency
Native 12V-2×6 Connector
ATX 3.1 Compliant
Embossed Low-Profile Cables
4.7Editor score
Thermaltake Toughpower GF A3 1050W
True 600W 12V Rail
PCIe Gen 5.1 Ready
ATX 3.1 Standard
10 Year Warranty
4.5Editor score
Asus ROG Strix 1000W Platinum White PSU
GaN MOSFET Efficiency
Intelligent Voltage Stabilizer
Dual Ball Fan Bearings
0dB Silent Technology
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply
Fully Modular Cabling
Cybenetics Gold Rated
Native 12V-2×6 Plug
ATX 3.1 Compliant
4.5Editor score
MSI MPG A1000GS PCIE5 II
Dual 12V-2×6 Cables
Server-Grade Capacitors
Industrial Level Protections
10 Year Warranty
4.3Editor score
be quiet! Power Zone 2 1000W
80+ Platinum Certified
Semi-Passive Zero-RPM
Pure Wings 3 Fan
German Engineering Design
4.6Editor score
NZXT C1000 Gold Core
ATX 3.1 Certified
Cybenetics Platinum Efficiency
FDB Fan with Zero RPM
7-Year Warranty
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed) – Best Budget Option
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W Output Power
80+ Platinum Efficiency
Modular Cable System
Graphics System Ready
This Dell power supply offers a compelling budget solution for high wattage needs. It is rated at 1100W and holds an 80+ Platinum efficiency certification. Users appreciate the modular cabling that simplifies installation significantly.
Pros
- Exceptional Efficiency Rating
- Modular Cabling for Build
- Cost Effective Renewed Option
- High Power for GPU
- Cleaner Inside the PC
Cons
- Limited Warranty Coverage
- Renewed Condition Variance
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The high efficiency rating means less heat is generated during operation. This is crucial for systems running graphics intensive tasks or gaming. The modular design ensures you only connect necessary cables for better airflow.
As a renewed product, pricing is significantly lower than new units. While there is variance in condition, the performance remains consistent with original specs. Ensure you check return policies before finalizing your purchase.
This unit is ideal for builders seeking power without breaking the bank. It fits well in professional workstations or gaming rigs needing stable delivery. Prioritize this model if you value efficiency and cost savings above all.
Efficiency Benefits
High efficiency reduces wasted energy as heat which lowers cooling costs over time.
Modular Design
Modular cables allow for cleaner builds and improved airflow inside the computer case.
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2. Dell 1100W EPP 80+ Platinum PSU (PR21C) – Reliable Server Power
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W Power Output
80+ Platinum Efficiency
Server Grade Design
PR21C Model Number
The Dell PR21C is a robust unit designed primarily for server environments. It delivers 1100W of power with an 80+ Platinum rating for high efficiency. This model is known for its stability under heavy loads.
Pros
- Proven Enterprise Reliability
- High Efficiency Rating
- Stable Power Delivery
- Robust Build Quality
Cons
- Designed for Server Chassis
- Connector Compatibility Varies
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Built for enterprise use, it features industrial grade components that ensure longevity. The power delivery is stable and reliable for demanding workloads. However, connector types might require adapters for standard consumer cases.
This PSU is best suited for users repurposing server hardware or needing specific form factors. It lacks some consumer features like RGB but offers pure performance. Check compatibility carefully before integrating it into a standard build.
Choose this unit if you prioritize raw reliability and high power output. It is a solid choice for specialized workstations or server racks. Ensure you have the correct adapters to avoid installation issues.
Server Grade Durability
Components are built to withstand continuous operation in high heat environments.
Power Stability
Stable power delivery ensures consistent performance for critical applications.
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3. CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Top Rated Value
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply
Fully Modular Design
ATX 3.1 Certified
120mm Rifle Bearing Fan
105C Rated Capacitors
The CORSAIR RM1000e brings modern standards like ATX 3.1 to a great price point. It features a fully modular design and supports PCIe 5.1 transient spikes. This makes it a strong candidate for high-end GPU systems.
Pros
- ATX 3.1 Ready
- Fully Modular Cabling
- Low Noise Operation
- Reliable Capacitors
- Modern Standby Compatible
Cons
- 1000W vs 1100W Limit
- Fan Curve Can Spool
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Efficiency is maintained through high quality components like 105C capacitors. The fan design keeps noise levels low even under full load. Wake from sleep times are fast due to modern standby compatibility.
While the rating is 1000W rather than 1100W it handles transient spikes well. The fully modular cables improve case aesthetics significantly. The balance of features and performance makes it our top choice.
This model is perfect for builders wanting next-gen support without excessive cost. It balances silence and efficiency effectively for home gaming setups. Ensure your GPU load fits within the 1000W continuous rating.
ATX 3.1 Support
Supports transient power excursions up to double rated power for GPU spikes.
Quiet Performance
Rifle bearing fan ensures quiet operation across all load scenarios.
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4. CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Best Modular Gold
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
Cybenetics Gold Efficiency
Native 12V-2×6 Connector
ATX 3.1 Compliant
Embossed Low-Profile Cables
The RM1000x improves on previous versions with native 12V-2×6 connectors. It is Cybenetics Gold certified for efficient power conversion. The cables are embossed for better flexibility and cleaner cable management.
Pros
- Native 12V-2×6 Plug
- Cybenetics Gold Rating
- Embossed Flexible Cables
- ATX 3.1 Standard
- Fully Modular System
Cons
- Price Point Higher
- Slightly Heavier Build
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Efficiency reaches up to 91 percent which reduces waste and heat. ATX 3.1 compliance ensures it handles future GPU power demands easily. The native connector eliminates the need for adapters for newer cards.
This unit offers a premium feel with flexible cables that are easier to route. The noise levels remain low thanks to optimized fan curves. It is slightly more expensive but justifies the build quality.
Choose this model for premium cable management and efficiency. It is ideal for builds where aesthetics and performance matter equally. Ensure you have a case that fits standard ATX dimensions comfortably.
Cable Flexibility
Embossed cables offer better routing and easier installation in tight spaces.
Native Connectivity
Direct connection to new GPUs reduces risk of adapter cable damage.
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5. Thermaltake Toughpower GF A3 1050W – Future Proof Gold Option
Thermaltake Toughpower GF A3 1050W
True 600W 12V Rail
PCIe Gen 5.1 Ready
ATX 3.1 Standard
10 Year Warranty
Thermaltake Toughpower GF A3 delivers 1050W with a true 600W 12V rail. It complies fully with ATX 3.1 and PCIe 5.1 standards for modern GPUs. This model focuses heavily on providing headroom for high power spikes.
Pros
- True 600W 12V Rail
- 10 Year Warranty
- PCIe 5.1 Ready
- Full ATX 3.1 Support
- Modular Low-Profile Cables
Cons
- Higher Price Point
- Larger Cable Lengths
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The 10 year warranty adds significant value and peace of mind. Cables are low profile flat for easier case management. Single +12V rail design ensures stable current delivery across multiple components.
While more expensive, the warranty and compliance justify the investment for many. It supports high-end NVIDIA and AMD cards without issue. Ensure your case supports the cable length if you have a small form factor.
Select this unit for long term reliability and future proofing. The true 600W rail is essential for next generation graphics cards. Prioritize this if you need strong warranty support.
True 12V Rail
Dedicated 12V rail ensures consistent power for GPU and CPU combined.
Warranty Value
Long warranty periods reduce long term risk of hardware replacement costs.
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6. Asus ROG Strix 1000W Platinum White PSU – Best Premium White Build
Asus ROG Strix 1000W Platinum White PSU
GaN MOSFET Efficiency
Intelligent Voltage Stabilizer
Dual Ball Fan Bearings
0dB Silent Technology
This unit stands out with GaN MOSFET technology for superior efficiency. It features intelligent voltage stabilization specifically tuned for GPU performance. The white aesthetic and heatsinks offer a premium look for enthusiasts.
Pros
- GaN MOSFET Tech
- GPU-FIRST Voltage Sense
- Premium White Aesthetics
- 0dB Technology
- ROG Heatsinks
Cons
- Significantly Higher Price
- Specialized White Cables
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Voltage delivery is enhanced by up to 45 percent through GPU-FIRST sensing. Dual ball bearings ensure the fan lasts twice as long as sleeve types. 0dB technology keeps it silent during light loads.
Premium builds justify the cost with unique features like GaN and white cables. It delivers stable power that reduces stuttering in games. Ensure your case supports white components for a clean look.
Choose this for high-end white gaming PCs requiring top efficiency. The voltage stabilization is a standout feature for gamers. Prioritize this if you want the best performance and look.
GaN Technology
GaN MOSFET reduces internal heat and improves overall efficiency significantly.
Voltage Stabilization
GPU-FIRST sensing ensures the card gets stable voltage during peaks.
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7. CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Standard Gold Choice
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply
Fully Modular Cabling
Cybenetics Gold Rated
Native 12V-2×6 Plug
ATX 3.1 Compliant
This RM1000x variant maintains high standards with full modularity. It holds a Cybenetics Gold rating for consistent power efficiency. The native 12V-2×6 connector supports modern graphics cards directly.
Pros
- Fully Modular Design
- Cybenetics Gold Certified
- Native 12V-2×6
- Low Noise Operation
- ATX 3.1 Ready
Cons
- Slightly Higher Cost
- Similar Features to e
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Efficiency reaches up to 91 percent to lower power consumption. ATX 3.1 compliance helps resist transient spikes from new GPUs. Cable design is sleek and flexible for professional looking installs.
It offers a solid middle ground with reliable performance. The native connector adds value for future upgrades. Compare it carefully against the e model for price differences.
This model is a safe choice for standard high end builds. It balances cost and features well for most gamers. Ensure your system requirements match the 1000W capacity.
Gold Efficiency
Gold certification ensures optimal power usage during typical gaming loads.
Cable Aesthetics
Sleek cables make it easier to route wires cleanly in a case.
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8. MSI MPG A1000GS PCIE5 II – Best Gaming Warranty
MSI MPG A1000GS PCIE5 II
Dual 12V-2×6 Cables
Server-Grade Capacitors
Industrial Level Protections
10 Year Warranty
MSI provides dual native 12V-2×6 cables for maximum flexibility. It uses server grade capacitors rated for 105C for longevity. Industrial level protections safeguard components against electrical surges.
Pros
- Dual 12V-2×6 Cables
- Server Grade Capacitors
- Strong Industrial Protections
- 10 Year Warranty
- Embossed Jackets
Cons
- Fewer Cable Options
- Mid Tier Rating
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A 10 year warranty covers long term ownership costs effectively. The embossed jacket cables offer flexibility for routing and aesthetics. Noise is controlled well during typical gaming sessions.
This PSU focuses on durability with server grade internal parts. It offers strong protection against common electrical issues. Ensure your system uses the native connectors to maximize performance.
This unit suits builders who want solid protection and warranty support. Dual cables allow for multiple GPUs or complex setups. Prioritize this if you value component longevity.
Capacitor Quality
Server grade capacitors withstand higher heat and provide longer life.
Cable Redundancy
Dual native cables allow for connecting multiple devices easily.
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9. be quiet! Power Zone 2 1000W – Best Silent Operation
be quiet! Power Zone 2 1000W
80+ Platinum Certified
Semi-Passive Zero-RPM
Pure Wings 3 Fan
German Engineering Design
This power supply targets quiet operation with a 140mm Pure Wings fan. It holds both 80 PLUS Platinum and Cybenetics Platinum certifications for high efficiency. The semi-passive mode stops the fan completely at low loads.
Pros
- 80+ Platinum Efficiency
- Pure Wings 3 Fan
- Semi-Passive Mode
- German Engineering
- Massive 12V Rail
Cons
- Slightly Larger Size
- Fan Start Delay
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German design ensures high build quality with excellent voltage regulation. The massive 12V rail handles transient loads effortlessly. Mesh front design helps intake air while keeping internal temps low.
Noise levels are exceptionally low for silent gaming setups. A short cooldown period is needed to prevent fan cycling. Ensure airflow in case supports this larger fan size.
Choose this for a silent system with efficient power delivery. The fan design offers reliability over many years. Prioritize this if noise reduction is your main goal.
Fan Silence
Pure Wings 3 fan is optimized for quiet operation under load.
Cooling Design
Mesh front allows better airflow to keep components cool efficiently.
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10. NZXT C1000 Gold Core – Best Value Core Build
NZXT C1000 Gold Core
ATX 3.1 Certified
Cybenetics Platinum Efficiency
FDB Fan with Zero RPM
7-Year Warranty
NZXT offers solid value with an ATX 3.1 certified Gold Core unit. It holds a Cybenetics Platinum rating for high energy efficiency. The fan is fluid dynamic bearing with a zero RPM mode.
Pros
- ATX 3.1 Certified
- Cybenetics Platinum Rated
- FDB Fan with Zero RPM
- Embossed Modular Cables
- 7 Year Warranty
Cons
- Standard Cable Length
- No Premium Aesthetics
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Dual colored 12V-2×6 connectors add a nice visual touch to builds. Premium capacitors rated 105C ensure stable performance over time. The 7 year warranty provides reliable long term protection.
Embossed modular cables help manage routing for cleaner installs. Noise levels are low enough for daily use without distraction. Ensure your case fits standard ATX dimensions comfortably.
This model balances features and price for most builders. It delivers efficiency and stability without unnecessary extra costs. Prioritize this if you need a clean reliable power source.
Fan Silence
Zero RPM mode keeps the PSU silent during light tasks and gaming.
Efficiency Rating
Cybenetics Platinum ensures low power consumption and better thermal output.
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Buying Guide – How to Choose the Best 1100W PSU
Selecting the right power supply involves checking wattage efficiency and connector types. These factors determine performance and safety.
Power Output
Ensure the total wattage supports your GPU and CPU peaks plus overhead. A 1100W unit provides headroom for multiple GPUs or future upgrades.
Always choose a PSU rated for 15 to 20 percent more than your system needs.
Efficiency Rating
Efficiency ratings like 80 PLUS Gold or Platinum reduce wasted energy and heat. Higher ratings mean lower electricity bills and cooler internal temperatures.
Prioritize Gold or Platinum ratings for high wattage systems to save energy.
Modular Design
Modular PSUs let you connect only necessary cables for cleaner builds. This improves airflow and makes installation easier inside your case.
Choose fully modular designs for best aesthetics and airflow in custom PCs.
ATX 3.1 Compliance
ATX 3.1 and PCIe 5.1 compliance ensures support for transient spikes. This protects your components from sudden power fluctuations during gaming.
Verify ATX 3.1 compliance if you plan to upgrade to newer GPUs soon.
Connector Types
Native 12V-2×6 connectors are vital for next gen graphics cards. Adapters can add resistance and risk of overheating in high load scenarios.
Look for native connectors to ensure safe direct connection to your GPU.
Warranty Coverage
A long warranty indicates manufacturer confidence in product durability. Look for 5 to 10 year warranties to protect your investment.
Prioritize models with at least a 7 year warranty for long term peace.
Noise Levels
Quiet PSUs use large fans and better bearings to reduce noise. Some offer zero RPM modes to stop fans under light loads completely.
Consider noise ratings if you build a PC for home or studio use.
Cable Quality
Flexible embossed cables are easier to route and look cleaner. Rigid cables can make installation difficult in small cases.
Check cable flexibility to ensure a smoother installation process.
How to Use and Care for Your 1100W PSU
Install the PSU in the bottom of your case for proper airflow alignment. Secure all screws tightly to prevent vibration noise during operation.
Connect the 24-pin and CPU power cables first before adding components. Then connect modular GPU cables to ensure safe power delivery.
Clean dust from the PSU intake filters every few months using compressed air. Avoid removing covers and touch internal parts directly.
Frequently Asked Questions
Is 1100W enough for future GPUs?
Yes 1100W provides plenty of headroom for next gen GPUs and CPUs. It supports transient spikes from ATX 3.1 compliant graphics cards easily.
What is the difference between Gold and Platinum?
Platinum is slightly more efficient than Gold reducing waste heat. Both are good but Platinum saves more on electricity bills long term.
Do I need a 12V-2×6 connector?
You need a native 12V-2×6 connector for modern NVIDIA graphics cards. Adapters can work but direct connections are safer and reduce resistance.
How do I install a modular PSU?
Connect only the cables your system needs to the PSU first. This keeps your case clean and improves internal airflow significantly.
Can I use a server PSU in a PC?
Server PSUs often use non-standard connectors like PR21C. You may need adapters which adds risk compared to standard consumer models.
How long does a PSU typically last?
High quality PSUs last 7 to 10 years with proper care. Avoid overheating and keep filters clean to maximize lifespan.
Why is ATX 3.1 important?
ATX 3.1 ensures the PSU handles sudden power spikes from GPUs. It protects your hardware from damage during high load gaming sessions.
Final Thoughts on Choosing the Best 1100W PSU
This guide reviewed ten top units for power and efficiency. Our top picks balance cost features and reliability for various build needs.
Prioritize ATX 3.1 compliance and modular design for best performance. Ensure your choice has a strong warranty for long term peace.
Prices change frequently so always verify current listings before buying. Check the links provided to confirm availability and deals today.