Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High efficiency 80+ Platinum rated
Modular cables for clean builds
Ideal for graphics intensive systems
In this guide
Finding the right power supply is crucial for system stability and longevity. A 1100W unit offers ample headroom for high-end components and future upgrades without compromising performance.
We evaluated ten top-rated units based on efficiency ratings cable management and build quality. Our analysis focuses on real-world performance and compatibility with modern hardware standards.
Each pick highlights specific strengths for different budgets and use cases. Please note that pricing fluctuates frequently so verify current costs before making your final purchase decision.
Top 3 Picks for Best 1100W PSU
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
4.7Editor score
Fully Modular PSU design
Intel ATX 3.1 Certified
105C-Rated Capacitors included
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 for 30% efficiency
GPU-FIRST voltage sensing tech
Dual ball fan bearings durable
Top 10 Best 1100W PSU in 2026 Compared
This table provides a side-by-side look at the core specifications and ratings for each unit reviewed in this guide to help you compare options quickly.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
Power Output: 1100 Watts
Efficiency: 80+ Platinum
Form Factor: Enterprise Server
Connector Type: Proprietary
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
Power Output: 1100 Watts
Efficiency: 80+ Platinum
Cables: Modular Design
Target: Gaming Systems
5.0Editor score
Editor's Choice
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
Power Output: 1000 Watts
Standard: ATX 3.1
Connectors: PCIe 5.1
Bearings: 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
Power Output: 1000 Watts
Certification: Cybenetics Gold
Connectors: 12V-2×6 Native
Cables: Embossed Low-Profile
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
Power Output: 1050 Watts
Certification: 80+ Gold
Connectors: 12V-2×6
Warranty: 10 Years
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
Power Output: 1000 Watts
Efficiency: 80+ Platinum
Tech: GaN MOSFET
Cooling: Dual Ball Bearings
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
Power Output: 1000 Watts
Certification: Cybenetics Gold
Standards: ATX 3.1
Connectors: 12V-2×6
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
Power Output: 1000 Watts
Certification: 80+ Gold
Connectors: Dual 12V-2×6
Capacitors: Server-Grade 105C
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
Power Output: 1000 Watts
Efficiency: 80+ Platinum
Fan: Pure Wings 3 140mm
Standards: ATX 3.1
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
Power Output: 1000 Watts
Certification: 80+ Gold
Fan: FDB Zero RPM Mode
Warranty: 7 Years
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (PR21C) – Enterprise Power Supply
Dell 1100W EPP 80+ Platinum PSU (PR21C)
Enterprise Server PSU
1100W Output
80+ Platinum Eff
PR21C Model
This Dell unit is an enterprise-grade power supply designed primarily for server environments like the PowerEdge R730. It delivers a robust 1100W output with an 80+ Platinum efficiency rating ensuring minimal energy waste during operation.
Pros
- High wattage output
- Platinum efficiency rating
- Server-grade reliability
- Compact form factor
Cons
- Proprietary connectors
- Limited compatibility
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Its main strength lies in its ability to provide stable power for intensive workloads typical of server racks. The build quality reflects industrial standards prioritizing longevity and consistent performance under continuous usage scenarios.
However the proprietary connector design limits its use to specific Dell server chassis making it less versatile for standard desktop builds. Users looking to adapt it for general PCs may face significant compatibility hurdles.
This PSU is ideal for IT professionals upgrading existing server infrastructure who require reliable high-wattage power. For general consumers it may not be the best fit due to connection limitations.
Server Optimization
Designed specifically for Dell server chassis ensuring seamless integration and optimal power distribution for critical server tasks.
Energy Efficiency
The 80+ Platinum certification helps reduce electricity costs and heat output in data center environments where power draw is constant.
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2. Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed) – Best Budget
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
Renewed Condition
1100W Output
80+ Platinum Eff
Modular Cables
This renewed Dell power supply offers an exceptional value proposition for builders needing high wattage without breaking the bank. It provides 1100W of power with 80+ Platinum efficiency which is rare at this price point.
Pros
- Affordable pricing
- High wattage output
- Modular cable management
- Excellent efficiency rating
Cons
- Renewed condition only
- Limited warranty options
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The modular cable design makes installation cleaner and more manageable compared to non-modular units. It is marketed as suitable for graphics intensive gaming systems though users should verify case compatibility.
As a renewed product the unit comes with some risk regarding long-term reliability or cosmetic condition. While the rating suggests high satisfaction buyers should be prepared for potential variations in physical state.
This PSU is perfect for budget-conscious gamers or workstation builders who can accept a renewed item. It delivers the power needed for high-end GPUs at a fraction of the cost of new units.
Value Proposition
Offers enterprise-level wattage and efficiency at a consumer-friendly price making it accessible for budget builds requiring high power.
Cable Management
Modular cables allow users to only connect what is needed reducing clutter and improving airflow within the computer chassis.
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3. CORSAIR RM1000e (2025) – Editor's Choice
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W Output
ATX 3.1 Ready
Fully Modular
105C Capacitors
The CORSAIR RM1000e brings the latest ATX 3.1 standard to the market ensuring compatibility with next-gen GPUs and transient power handling. It delivers 1000W efficiently with a focus on silence and reliability.
Pros
- Modern ATX 3.1 standard
- Fully modular cabling
- High-grade capacitors
- Reliable brand reputation
Cons
- Slightly lower wattage than 1100W options
- Price vs entry models
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Its fully modular design allows for a clean build while the 105C-rated capacitors promise long-term stability. The rifle bearing fan helps keep noise low even under heavy loads typical of gaming sessions.
While it falls just short of the 1100W mark it still provides ample power for most high-end systems. The main trade-off is the cost compared to older or renewed units but the warranty and standards justify it.
This unit is an excellent choice for builders planning future upgrades with modern graphics cards. It balances performance noise and features well making it a top recommendation for new builds.
Future Proofing
ATX 3.1 certification ensures readiness for upcoming hardware requiring specific power delivery standards and transient handling capabilities.
Silent Operation
The specialized fan curve and bearing design prioritize quiet performance so users can focus on gaming without fan noise distractions.
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4. CORSAIR RM1000x ATX 3.1 – Silent Operation
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
12V-2×6 Native
Embossed Cables
The RM1000x builds on the RM series reputation with modern connectivity and improved efficiency ratings. It features a native 12V-2×6 connector simplifying connections for modern graphics cards without adapters.
Pros
- Native 12V-2×6
- Cybenetics Gold rating
- Embossed flexible cables
- Low noise design
Cons
- 1000W not 1100W
- Higher cost option
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Cybenetics Gold certification ensures efficient power delivery which reduces heat and energy costs. The embossed cables are not just aesthetically pleasing but also flexible enough to make routing easier.
While it is rated at 1000W it handles transient spikes well thanks to ATX 3.1 compliance. The trade-off is the higher price compared to basic models but the cable quality and connectors are superior.
This PSU is perfect for enthusiasts who want clean builds and modern standards. It is a reliable choice for high-end gaming PCs where cable management and compatibility matter.
Native Connectors
Including the native 12V-2×6 connector eliminates the need for adapters reducing potential points of failure in your power chain.
Efficient Power
Cybenetics Gold rating ensures you get stable power with minimal waste helping keep system temperatures lower during peak usage.
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5. Thermaltake Toughpower GF A3 1050W – Long Warranty
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
12V-2×6 Native
80+ Gold
10 Year Warranty
Thermaltake offers a solid mid-range option with the Toughpower GF A3 delivering 1050W of power for modern systems. It includes native connectors and meets ATX 3.1 standards for next-gen hardware support.
Pros
- 10 year warranty
- Native connectors
- ATX 3.1 compliant
- Single +12V rail
Cons
- Mid-range efficiency
- Limited premium features
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The standout feature is the 10 year warranty providing peace of mind for long-term builds. The high amperage single rail ensures stable power delivery to high-draw components like graphics cards.
It is fully modular with low-profile flat cables making installation easier. The main limitation is the 80+ Gold rating which is good but not top-tier compared to Platinum units.
This PSU is ideal for users seeking reliability and support without paying premium prices. It serves well as a foundation for powerful gaming rigs needing long-term assurance.
Long Warranty
A 10 year warranty demonstrates manufacturer confidence and protects your investment against failures over a decade of use.
Stable Power
The single +12V rail design ensures consistent current delivery to all components avoiding potential conflicts between separate rails.
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6. Asus ROG Strix 1000W Platinum – Best Premium
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+ Platinum
GaN MOSFET
GPU-FIRST sensing
The ROG Strix unit represents the high end of the market with premium features like GaN MOSFETs for superior efficiency and a GPU-FIRST voltage stabilizer for smoother gameplay.
Pros
- GaN technology for efficiency
- GPU-FIRST sensing
- Premium build quality
- Dual ball bearings
Cons
- High price
- 1000W not 1100W
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It is a visually striking white unit designed for clean builds while offering 80+ Platinum efficiency. The use of large heatsinks and dual ball bearings ensures it stays cool and runs quietly.
The high price is the main trade-off but you get top-tier components and unique technologies that improve performance stability. It is not just a PSU but a showcase piece for enthusiast systems.
This PSU is best for those who want the absolute best and care about aesthetics. It delivers the highest quality power delivery for demanding gaming setups.
GaN Efficiency
GaN MOSFET technology reduces energy loss significantly allowing for a more organized internal layout and cooler operation inside the case.
Voltage Stabilization
Intelligent voltage stabilizer technology enhances delivery to the graphics card ensuring unwavering performance even during intense gaming sessions.
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7. CORSAIR RM1000x ATX 3.1 – Reliable Choice
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W Output
Cybenetics Gold
12V-2×6 Native
Fully Modular
This CORSAIR unit offers a solid balance of modern standards and proven reliability. It comes with the native 12V-2×6 connector and meets Cybenetics Gold efficiency standards for stable operation.
Pros
- Cybenetics Gold rated
- Native connectors
- Embossed cables
- Proven reliability
Cons
- 1000W limit
- Standard premium pricing
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The modular design and embossed cables make building a system clean and organized. It handles transient spikes well thanks to ATX 3.1 compliance ensuring protection for sensitive components.
It is a safe choice for builders who want a reputable brand with modern connectors. The main downside is the 1000W limit which may not suit the absolute highest-end configurations.
This PSU is perfect for high-end gaming systems that value brand reliability. It provides the necessary power and protection for most current hardware setups.
Efficiency Rating
Cybenetics Gold certification ensures efficient power conversion reducing overall system heat and energy consumption.
Cable Quality
Embossed low-profile cables look great and are flexible making it easy to route them neatly through tight spaces.
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8. MSI MPG A1000GS PCIE5 II – Long Warranty
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+ Gold
Server-Grade Capacitors
10 Year Warranty
MSI brings a robust option with server-grade capacitors and dual 12V-2×6 cables for modern GPU support. It meets ATX 3.1 standards and includes industrial level protection features for safety.
Pros
- Dual 12V-2×6 cables
- Server-Grade Capacitors
- 10 year warranty
- Industrial protection
Cons
- Slightly lower rating
- 1000W limit
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The 10 year warranty provides excellent long-term assurance for builders. Embossed jacket cables offer improved flexibility making routing easier during installation in smaller cases.
It is a reliable unit for gaming builds needing extra protection and warranty coverage. The rating is slightly lower than competitors but the component quality remains high.
This PSU is ideal for gamers who prioritize warranty and safety features. It delivers stable power for high-end setups with comprehensive protection features.
Capacitor Quality
Server-grade capacitors ensure stable operation even under demanding loads helping to maintain consistent performance.
Warranty Coverage
A 10 year warranty offers extensive protection against defects giving you peace of mind for your investment.
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9. be quiet! Power Zone 2 1000W – Silent Choice
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W Output
80+ Platinum
Zero RPM Fan
140mm Fan
be quiet! focuses on silence with the Power Zone 2 unit featuring a large 140mm fan and zero RPM mode for light loads. It offers 80+ Platinum efficiency and handles transients with ease.
Pros
- Platinum efficiency
- Zero RPM fan mode
- 140mm large fan
- Angled connectors
Cons
- 1000W limit
- Zero RPM delay
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The 90-degree angled 12V-2×6 connector makes it easier to route cables in tight cases. The fan design ensures it stays silent during most gaming scenarios providing a distraction-free experience.
It is a great choice for silent PC builds where noise is a primary concern. The main trade-off is the zero RPM delay which might cause a fan start up after idle periods.
This PSU is perfect for users who prioritize silence over maximum wattage. It provides reliable power for high-end systems without adding unnecessary noise.
Zero RPM Mode
Fan turns off completely under low load ensuring absolute silence when your system is not under heavy stress.
Connector Design
Angled connectors make it easier to route cables cleanly reducing clutter and improving airflow within the case.
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10. NZXT C1000 Gold Core – Streamlined Design
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W Output
80+ Gold
135mm FDB Fan
7 Year Warranty
NZXT offers a streamlined PSU with the C1000 Gold Core featuring a 135mm FDB fan and zero RPM mode for silent operation. It meets ATX 3.1 standards and includes dual-colored connectors.
Pros
- FDB Zero RPM mode
- Embossed cables
- Platinum efficiency
- Sleek design
Cons
- 7 year warranty
- 1000W limit
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The fully modular design with embossed cables keeps builds clean and organized. Premium capacitors ensure stable performance across various loads helping to protect your components.
It is a strong choice for users who want a balance of aesthetics and performance. The 7 year warranty is solid though some competitors offer longer coverage periods.
This PSU is ideal for modern builds requiring clean design and reliable power. It fits well with NZXT cases and offers good value for the features provided.
FDB Fan
Fluid dynamic bearing fan provides long lifespan and quiet operation keeping your system cool without noise.
Zero RPM Mode
Fan stops during light workloads ensuring silent operation when full power is not needed for your tasks.
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Buying Guide – How to Choose the Best 1100W PSU
Choosing the right power supply requires understanding wattage needs efficiency ratings and connector types to ensure compatibility with your system components.
Wattage and Headroom
A 1100W PSU provides substantial headroom for high-end GPUs and CPUs allowing for future upgrades without replacement. It ensures stability under transient spikes that modern graphics cards may draw.
Always choose a unit with at least 20 percent more wattage than your calculated peak power draw for safe operation.
Efficiency Ratings
Efficiency ratings like 80+ Gold or Platinum indicate how well the unit converts AC power to DC power. Higher ratings mean less heat waste and lower electricity costs over time.
Look for 80+ Gold or better to ensure energy efficiency and reduced system heat.
Modular Cabling
Fully modular PSUs allow you to connect only the cables you need reducing clutter and improving airflow. Non-modular units come with fixed cables that may get in the way.
Opt for fully modular designs to keep your build clean and improve case cooling.
ATX Standards
ATX 3.1 and PCIe 5.1 support are critical for compatibility with new GPUs like the RTX 40 series or future models. These standards include better transient handling.
Ensure the PSU supports ATX 3.1 if you plan to use next-generation graphics cards.
Connector Types
Native 12V-2×6 connectors simplify cabling and reduce the risk of connector damage. Adapters can introduce points of failure in your power delivery chain.
Choose a PSU with native connectors for safer and cleaner cable management.
Warranty and Reliability
Longer warranties often indicate higher build quality and better component selection. A 10 year warranty can provide peace of mind against unexpected failures.
Prioritize units with at least a 7 year warranty for long-term reliability.
Fan and Cooling
Fan quality and bearing type affect noise levels and lifespan. Fluid dynamic or rifle bearings tend to be quieter and last longer than sleeve bearings.
Select a PSU with high-quality bearings for quieter operation and durability.
Protection Features
Modern PSUs include protections like OVP UVP OCP and OPP to safeguard components from electrical issues. These features prevent damage from surges or shorts.
Ensure the unit includes comprehensive protection features to keep your system safe.
How to Use and Care for Your 1100W PSU
Ensure your PSU is properly grounded and connected to a stable power source. Use a surge protector to guard against electrical spikes that could damage components.
Avoid overloading the unit by calculating your system power draw carefully. Keep cables organized to improve airflow and reduce heat inside the case.
Dust the PSU fan periodically to maintain cooling efficiency. If the unit shows signs of failure like strange noises replace it immediately to protect your system.
Frequently Asked Questions
Is 1100W enough for any PC build?
Yes 1100W is sufficient for almost any current or future PC build including those with high-end GPUs and CPUs. It provides ample headroom for multiple GPUs or extensive peripherals without stressing the unit.
What is ATX 3.1?
ATX 3.1 is a modern power supply standard that improves transient power handling and efficiency. It ensures better compatibility with next-gen hardware and includes native connectors like 12V-2×6.
Do I need a modular PSU?
Modular PSUs are recommended for cleaner builds and better airflow since you only use necessary cables. Non-modular units work fine but often leave unused cables cluttering the case.
Can a PSU protect my components?
High-quality PSUs include protection features like overvoltage and short circuit protection. These features help prevent damage from electrical surges or wiring errors.
Why do wattages vary?
Wattage varies based on component power draw and future upgrades. A higher wattage unit allows for more headroom and stability under high loads.
Does efficiency matter?
Yes efficiency affects power consumption and heat output. Higher rated PSUs waste less energy and run cooler which can extend system lifespan.
Final Thoughts on Choosing the Best 1100W PSU
We highlighted top picks like the Dell renewed model for budget and the CORSAIR units for modern standards. Each option balances performance and features for different build needs.
Prioritize efficiency connector types and warranty when selecting a PSU. These factors ensure your system runs quietly and safely over the long term.
Always check current prices before buying as costs fluctuate frequently. Choose the unit that best fits your specific power requirements and budget constraints.