Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High efficiency platinum rated
Modular cable management
Cost effective solution
In this guide
Finding the right power supply is critical for modern systems. A 1100W PSU offers the headroom needed for top-tier graphics cards and processors without compromising stability or efficiency during intense workloads.
We evaluated ten leading power supplies based on efficiency ratings, modular cabling, and compliance with the latest ATX 3.1 standards. Our list covers options from trusted brands like Corsair, Dell, and Thermaltake to help you build reliably.
Each pick below highlights specific strengths like silent operation or native 12V-2×6 connectors. Prices and availability change frequently, so check the linked product pages for the most current offers before finalizing your 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 compliant
Native 12V-2×6 connector
Low noise operation
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 efficiency
Intelligent voltage stabilizer
Premium white design
Top 10 Best 1100W PSU in 2026 Compared
This side-by-side comparison highlights key specifications across all ten units. We focus on wattage, efficiency certification, connector types, and warranty details to help you decide quickly.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W output power
80 Plus Platinum
Standard server unit
N/A rating data
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W output power
80 Plus Platinum
Renewed condition
High user rating
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W output power
ATX 3.1
Fully modular design
105°C capacitors
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 power
ATX 3.1
Cybenetics Gold efficiency
Native 12V-2×6
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 power
80 Plus Gold
True 600W 12V
10 year 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 output power
80 Plus Platinum
GaN MOSFET tech
Voltage stabilizer
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W output power
ATX 3.1
Cybenetics Gold
Embossed cables
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 power
Dual 12V-2×6
Server-grade caps
10 year warranty
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W output power
80 Plus Platinum
Zero RPM cooling
Angled connector
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W output power
80 Plus Gold
FDB Fan
7 year warranty
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed) – Best Budget
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W total power
80 Plus Platinum
Modular connections
Renewed quality
This Dell 1100W unit stands out as an exceptional value for builders needing high power without breaking the bank. With a perfect user rating, it offers proven efficiency and stable power delivery for demanding setups.
Pros
- Inexpensive high wattage
- Platinum efficiency rating
- Modular cable setup
- Great for tight budgets
- Proven Dell reliability
Cons
- Renewed condition only
- Limited warranty support
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Its 80 Plus Platinum certification ensures minimal energy waste, while the modular cabling simplifies installation in large chassis. The renewed status allows access to enterprise-grade reliability at a fraction of new unit costs.
The main trade-off is the renewed condition, which means packaging and cosmetic wear may vary. However, for budget-focused builds where performance matters most, the cost savings significantly outweigh these minor cosmetic concerns.
This PSU is ideal for users seeking maximum wattage for the lowest price. If you need 1100W for dual GPUs or heavy compute tasks, this model delivers enterprise reliability affordably.
Cost Effective High Power
The renewed status allows you to access enterprise Dell power supplies at consumer-friendly prices.
Efficiency Without Compromise
Platinum certification means you save on electricity bills compared to lower rated units.
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2. Dell 1100W EPP 80+ Platinum PSU (PR21C) – Powerful Server Unit
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W continuous
80 Plus Platinum
Original PR21C
Heavy duty build
The Dell PR21C represents a robust option for those needing 1100W of power from a reputable OEM source. Designed for enterprise environments, it brings server-grade stability to demanding desktop workloads.
Pros
- High wattage capacity
- Original OEM quality
- Stable power delivery
- Platinum efficiency
- Server-grade reliability
Cons
- Limited consumer support
- Large physical size
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Its 80 Plus Platinum rating ensures high efficiency, reducing heat output during operation. The solid build quality typically associated with Dell PowerEdge systems provides confidence in long-term reliability for your PC.
This unit is designed for standard server cases, which may limit compatibility with smaller ATX mid-towers. Ensure your case has adequate clearance before purchasing this powerful supply.
Ideal for workstation builds requiring consistent power under heavy loads. If you need raw power and efficiency in a proven chassis design, this unit serves well.
Enterprise Reliability
Built for servers, this unit handles heavy loads without dropping voltage or overheating.
Efficiency Rating
Platinum efficiency ensures less heat and electricity usage during daily tasks.
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3. CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black – Modern Standard
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
1000W output
ATX 3.1 ready
Fully modular
105°C capacitors
The CORSAIR RM1000e is a modern power supply built to meet the latest ATX 3.1 standards for next-generation hardware. It offers a fully modular design and quiet operation to suit enthusiast gaming rigs.
Pros
- Future proof ATX 3.1
- Fully modular cables
- Low noise design
- High temp capacitors
- Modern standby mode
Cons
- Slightly lower wattage
- Standard non Gold cables
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Its 1000W capacity is sufficient for high-end GPUs like the RTX 4090, while the 105°C capacitors ensure electrical stability. The silent fan curve keeps noise levels low even under full load conditions.
While 1000W is slightly lower than 1100W options, it covers most current consumer needs effectively. The lack of native 12V-2×6 cables in this specific model requires adapters for newer cards.
This PSU is perfect for those prioritizing quiet operation and modern standards. If you value a clean install and reliable performance for new hardware, this is a strong choice.
Next Gen Ready
ATX 3.1 compliance means you are ready for upcoming hardware standards seamlessly.
Reliable Components
High temperature capacitors improve longevity and reduce failure risks in hot environments.
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4. 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 – Editor's Choice
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
Native 12V-2×6
Cybenetics Gold
Embossed cables
The CORSAIR RM1000x stands out with its native 12V-2×6 connector, eliminating the need for adapters on newer graphics cards. This feature combined with a highly modular design makes it a top choice for modern builds.
Pros
- Native 12V-2×6 included
- Low noise operation
- Embossed flexible cables
- ATX 3.1 compliant
- Solid reliability
Cons
- 1000W limit
- Price point
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Cybenetics Gold efficiency ensures stable and clean power delivery, while the low-profile embossed cables make cable management significantly easier. It strikes a perfect balance between performance and build convenience.
The primary limitation is the 1000W rating, which is sufficient for most but not all 1100W scenarios. However, the quality of power and future-ready connectors often outweigh this margin for most users.
Ideal for gamers and creators using high-end GPUs. If you want a quiet, clean, and compliant PSU without adapter hassle, this unit delivers excellent value.
No Adapter Needed
Native 12V-2×6 connector ensures safe and direct connection to your GPU.
Premium Cable Quality
Embossed cables are flexible and look cleaner inside your PC case.
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5. 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 Solution
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
True 600W 12V
80 Plus Gold
10 year warranty
The Thermaltake Toughpower GF A3 offers a solid 1050W capacity with full ATX 3.1 compliance. Its standout feature is the ability to support 600W transients on the 12V rail for next-gen GPUs.
Pros
- True 600W single rail
- Full ATX 3.1
- Gold efficiency
- Ten year warranty
- Future proof ready
Cons
- Gold vs Platinum
- Limited model options
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80 Plus Gold certification ensures good efficiency and reliable power delivery for gaming or content creation tasks. The comprehensive ten-year warranty reflects confidence in its long-term durability and build quality.
While it lacks a Platinum rating, the robust connector and single rail design make it a safe bet for high-power systems. It balances performance and price well for modern enthusiast builds.
Best for users needing high transient headroom and strong warranty coverage. If you prioritize a 1050W PSU that handles spikes well, this is a dependable option.
High Transient Support
True 600W 12V rail ensures your GPU handles power spikes without issues.
Strong Warranty
A decade of coverage provides peace of mind for your investment.
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6. Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer – 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
Platinum efficiency
GaN MOSFET tech
White aesthetics
The Asus ROG Strix 1000W combines stunning aesthetics with advanced technology. Its GaN MOSFET design improves efficiency by 30 percent while keeping internal temperatures low for better cooling.
Pros
- GaN MOSFET efficiency
- Voltage stabilizer
- White premium design
- Quiet operation
- Platinum certification
Cons
- High price point
- Aesthetic specific
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The patented Intelligent Voltage Stabilizer ensures voltage delivery to your GPU is precise and stable. This technology is crucial for preventing performance dips during high-load gaming sessions.
The premium price reflects the top-tier components and aesthetic choices. If you want a white system with maximum efficiency and silence, this unit justifies the cost for enthusiasts.
Best for high-end builds where aesthetics and performance are paramount. If you value GaN technology and a white theme, this is the top premium pick available.
GaN Technology
GaN MOSFETs provide higher efficiency and cooler running temperatures than standard units.
Voltage Precision
Intelligent stabilizer ensures your GPU gets steady power during intense gameplay.
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7. CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black – Reliable Choice
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
1000W output
ATX 3.1
Cybenetics Gold
Fully modular
This CORSAIR RM1000x offers a reliable ATX 3.1 compliant power supply for high-end gaming rigs. It features a fully modular design and low-noise operation to suit quiet PC builds.
Pros
- 1000W power
- Modern ATX 3.1
- Quiet low noise
- Solid build quality
- Embossed cables
Cons
- Slightly higher cost
- 1000W limit
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The Cybenetics Gold certification ensures efficient power delivery. Its 1000W capacity is sufficient for most dual GPU or high-end single GPU configurations without voltage drops.
While the price is competitive, it may be slightly higher than entry-level options. However, the stability and quality of components provide long-term value for your system.
Ideal for gamers seeking a reliable ATX 3.1 power supply. If you need consistent power with flexible cabling, this model is a solid choice.
Quiet Operation
Designed for low noise, this PSU is perfect for silent setups.
Modern Compliance
ATX 3.1 ensures compatibility with future hardware standards.
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8. 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 – Dual Connector
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
Dual 12V-2×6
80 Plus Gold
10 year warranty
The MSI MPG A1000GS PCIE5 II brings dual native 12V-2×6 cables to the table for multi-GPU setups. It combines ATX 3.1 compliance with server-grade components for stable performance.
Pros
- Dual 12V-2×6 cables
- Server grade caps
- ATX 3.1
- Gold efficiency
- Ten year warranty
Cons
- Basic design
- Noise profile
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80 Plus Gold certification ensures efficient power delivery with a ten-year warranty backing the build. The industrial-grade protection suite safeguards your components against electrical issues.
While not the most premium unit on the market, it offers practical features for gamers. The dual cables are a major plus if you plan to use two high-wattage GPUs.
Ideal for users needing dual GPU support with native connectors. If you value practical features over flashy aesthetics, this PSU serves well.
Dual Connectors
Two 12V-2×6 cables enable direct connections for dual GPU systems.
Component Quality
Server-grade capacitors ensure long-term reliability and stability.
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9. be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply – Silent Power
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
1000W output
80 Plus Platinum
Zero RPM cooling
140mm fan
The be quiet! Power Zone 2 is designed for silence. Its Zero RPM fan mode means the PSU runs completely silent during light loads, making it ideal for quiet builds.
Pros
- Exceptionally silent
- Platinum efficiency
- Zero RPM mode
- ATX 3.1
- German engineering
Cons
- High price
- Large fan
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Platinum certification delivers high efficiency up to 94 percent, reducing heat and power waste. The 140mm Pure Wings 3 fan ensures silent cooling when needed.
While the price is higher than average, the silence and German engineering justify the cost for audiophiles. It is a premium unit that prioritizes quiet operation above all.
Best for users who want a silent PC. If noise is your top priority, this PSU delivers the quietest operation in its class.
Silent Operation
Zero RPM fan technology ensures no noise during light gaming or web browsing.
German Engineering
Built with precision and high-quality materials for reliability.
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10. NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold – Modern Core
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
1000W output
80 Plus Gold
FDB Fan
Fully modular
The NZXT C1000 Gold Core is a modern 1000W power supply built to meet ATX 3.1 standards. It delivers stable power with a fully modular design to keep your build clean.
Pros
- FDB fan quiet
- ATX 3.1 compliant
- Fully modular cables
- 105C capacitors
- Seven year warranty
Cons
- Gold vs Platinum
- Average price
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Its FDB fan operates quietly even at full load. High-quality 105°C capacitors ensure reliable performance, while the 7-year warranty provides solid support coverage.
This unit offers a balanced choice for mid to high-end systems. It does not feature premium connectors but meets all essential modern standards for gaming rigs.
Ideal for users seeking a reliable NZXT PSU for modern hardware. If you need a quiet, modular, and compliant power supply, this fits well.
Silent Cooling
Fluid Dynamic Bearing fan ensures quiet performance across all load levels.
Modern Standards
ATX 3.1 compliance ensures readiness for next-generation hardware.
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Buying Guide – How to Choose the Best 1100W PSU
Choosing the right 1100W PSU involves checking efficiency, connectors, and warranty. Here are the key factors to consider.
Efficiency Rating
Look for 80 Plus Platinum or Gold certifications to minimize heat and electricity costs. Higher efficiency means less wasted power and quieter operation.
Prioritize Platinum or Gold ratings for long-term savings and lower temperatures.
Modular Cabling
Fully modular cables allow you to connect only what you need, improving airflow and aesthetics. This is essential for large cases with many components.
Choose fully modular units to make installation easier and your build cleaner.
ATX 3.1 Compliance
ATX 3.1 ensures support for modern transient spikes and next-gen GPU power requirements. This is vital for using new graphics cards safely.
Verify ATX 3.1 compatibility to protect your GPU from power spikes.
Connector Types
Native 12V-2×6 connectors are preferred for high-end GPUs to avoid adapter risks. Check your card requirements before purchasing.
Ensure your PSU has the required native connectors to avoid adapters.
Warranty Length
A long warranty like 10 years indicates high reliability. It protects you against component failures over time.
Look for warranties of seven years or more for long-term peace of mind.
Fan Noise
Zero RPM or large fan designs reduce noise during light loads. This is crucial for silent builds.
Prioritize quiet fan curves if noise is a priority for your setup.
Build Quality
High-quality capacitors like 105°C rated ones ensure longevity. Look for reputable brands for reliable construction.
Select units with high-temperature capacitors for better durability.
Total Power Output
Ensure the PSU offers enough wattage for your specific CPU and GPU combo. A 1100W PSU offers flexibility for future upgrades.
Choose wattage that exceeds your system requirements by at least 20 percent.
How to Use and Care for Your 1100W PSU
Connect only the necessary modular cables to keep airflow clear. Avoid bundling unused wires inside the case as they trap heat.
Clean dust filters regularly to prevent clogging which restricts airflow. Use compressed air every few months to maintain fan efficiency.
Ensure the PSU is mounted with the fan facing downwards or upwards as per your case design. Do not obstruct the vents during operation.
Frequently Asked Questions
Is 1100W enough for my gaming PC?
Yes, 1100W is sufficient for almost any single or dual GPU setup. It allows for significant power spikes and future upgrades without replacing the unit. Even high-end cards like the RTX 4090 draw much less than this.
Do I need ATX 3.1?
ATX 3.1 ensures you are ready for next-generation GPUs and their power spikes. It is highly recommended for new builds. Older PSUs may not handle transient spikes safely.
What is the difference between modular and non-modular?
Modular PSUs allow you to connect only the cables you need. Non-modular units have all cables permanently attached. Modular designs improve airflow and aesthetics in your case.
Are refurbished PSUs safe to buy?
Refurbished or renewed units can be safe if sold by reputable sellers. Always check warranty and return policies. Look for high ratings to ensure quality control was performed.
What does 80 Plus Platinum mean?
80 Plus Platinum means the PSU is highly efficient at converting power. It wastes less electricity as heat compared to standard units. This lowers your energy bills over time.
Can I use a 1100W PSU with a low-end PC?
Yes, you can use a 1100W PSU with a low-end PC. The PSU will only draw as much power as your system needs. It may run cooler due to efficient operation at lower loads.
Final Thoughts on Choosing the Best 1100W PSU
We reviewed ten excellent 1100W options ranging from budget renewed Dell units to premium white Asus ROG models. The Dell CMPGM offers incredible value while the Corsair RM1000x provides modern reliability.
Prioritize ATX 3.1 compliance and efficient ratings to protect your hardware. If silence matters most, choose the be quiet! model. For native connectors, look at Corsair or Thermaltake.
Always verify the current prices and availability before purchasing. Specifications can change and sales may offer better deals on these premium power supplies.