Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High efficiency 80+ Platinum rating
Modular cables for clean builds
Renewed condition at low price
In this guide
Finding the right power supply is critical for system stability. A 1100W PSU delivers enough wattage for high-end GPUs and CPUs without sagging under load.
We compared ten top-rated units based on efficiency ratings, modular design, and connector availability. Our analysis focuses on real-world performance and build quality.
Each pick highlights key strengths and trade-offs for different users. Note that prices fluctuate frequently, so verify current listings before purchasing your new unit.
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 and PCIe 5.1 ready
Native 12V-2×6 connector included
Low-noise operation with modular design
Asus ROG Strix 1000W Platinum White PSU
4.7Editor score
GaN MOSFET for superior efficiency
Intelligent voltage stabilizer technology
Premium white aesthetic design
Top 10 Best 1100W PSU in 2026 Compared
This side-by-side comparison highlights the key specifications and features of ten leading power supply units. Use this table to quickly identify which model fits your specific build requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
80+ Platinum efficiency rating
Fixed non-modular cabling
Designed for PowerEdge R730
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM)
80+ Platinum certified
Modular cable design
Renewed condition option
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready
ATX 3.1 compliant
Fully modular cabling
105C rated capacitors
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular
Cybenetics Gold efficiency
Native 12V-2×6 connector
Low profile embossed cables
4.7Editor score
Thermaltake Toughpower GF A3 1050W
80+ Gold certified
12V-2×6 connectors included
10 year warranty coverage
4.5Editor score
Asus ROG Strix 1000W Platinum White PSU
GaN MOSFET technology
Intelligent voltage stabilizer
Dual ball fan bearings
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W
Cybenetics Gold certified
Fully modular cabling
Low-noise fan curve
4.5Editor score
MSI MPG A1000GS PCIE5 II
Server-grade capacitors
Dual 12V-2×6 cables
8 pin PCIe x3 support
4.3Editor score
be quiet! Power Zone 2 1000W
80+ Platinum certified
Semi-passive zero RPM cooling
90 degree angled connector
4.6Editor score
NZXT C1000 Gold Core
Cybenetics Platinum efficiency
135mm FDB fan
7 year warranty included
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (CMPGM) – Best Budget
Dell 1100W EPP 80+ Platinum PSU (CMPGM)
1100 Watt output capacity
80+ Platinum efficiency rating
Modular cable configuration
Renewed product condition
The Dell 1100W EPP 80+ Platinum PSU offers exceptional value for budget-conscious builders seeking high wattage. With a perfect rating in this listing, it stands out as a reliable option for repurposing or upgrading older systems efficiently.
Pros
- Extremely affordable price point
- High efficiency reduces energy costs
- Modular cables improve airflow
- Proven enterprise-grade reliability
- Compact form factor
Cons
- Renewed condition may vary
- Limited modern connector support
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This unit features an 80+ Platinum efficiency rating which ensures minimal energy waste during operation. The modular cable design allows for cleaner cable management inside the chassis, improving airflow and overall system cooling performance significantly.
While the renewed condition is a trade-off, it allows access to enterprise-grade power supplies at a fraction of the cost. The compact size fits well in standard cases but ensure compatibility with your specific motherboard form factor.
Buyers looking for a high-wattage power source without breaking the bank should consider this option. It delivers stable power for intensive tasks while maintaining high efficiency standards expected from Dell enterprise hardware.
High Efficiency Performance
The 80+ Platinum certification means less heat and lower electricity bills compared to standard units.
Modular Cable Management
Connect only the cables you need to keep your build tidy and airflow unobstructed.
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2. Dell 1100W EPP 80+ Platinum PSU (PR21C) – High Wattage
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100 Watt continuous power
80+ Platinum efficiency
Fixed non-modular cables
Enterprise server design
The Dell PR21C PowerEdge R730 1100W PSU delivers robust power for enterprise servers or specialized workstations. Its fixed non-modular design ensures reliability but requires careful planning during installation in standard desktop cases.
Pros
- High wattage for demanding loads
- Durable enterprise build quality
- Platinum efficiency rating
- Stable voltage regulation
- Compatible with specific server racks
Cons
- Fixed cables limit flexibility
- Designed for specific server chassis
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Built with 80+ Platinum efficiency, this unit minimizes heat generation during peak loads. The stable voltage regulation supports sensitive components, making it a viable choice for mission-critical computing environments where uptime is essential.
The non-modular cabling can be cumbersome in standard PC builds as unused cables may clutter the interior. Ensure your case has adequate clearance before proceeding with installation to avoid airflow restrictions or cable strain.
This power supply is best suited for server upgrades or industrial applications requiring high wattage stability. Users should verify connector compatibility with their specific motherboard and peripheral requirements before purchasing.
Enterprise Reliability
Designed for continuous operation in server environments ensuring consistent power delivery.
Voltage Stability
Precise voltage regulation protects sensitive components from fluctuations during operation.
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3. CORSAIR RM1000e (2025) – Modern Standard Ready
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready
ATX 3.1 certified
1000 Watt capacity
105C rated capacitors
Fully modular design
The CORSAIR RM1000e (2025) aligns with the new ATX 3.1 power standard offering readiness for upcoming hardware changes. Its fully modular design and low noise fan make it a solid choice for modern high-performance builds.
Pros
- Compliant with ATX 3.1 standards
- 105C rated capacitors for longevity
- Fully modular cabling system
- Low noise operation
- Modern standby compatibility
Cons
- Slightly lower wattage than 1100W
- No native 12V-2×6 connector
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Featuring 105C rated capacitors, this unit promises extended lifespan and reliable performance under thermal stress. The Modern Standby compatibility ensures fast wake-from-sleep times improving the daily user experience significantly.
While it supports ATX 3.1, it lacks a native 12V-2×6 connector which might require adapters for the latest GPUs. The noise curve is well tuned to keep operation silent even when under full load conditions.
Consider this unit for builds prioritizing future-proofing and quiet operation. It balances modern standards with proven Corsair reliability for a smooth and efficient system setup experience.
ATX 3.1 Ready
Supports transient power excursions ensuring stable power delivery during GPU spikes.
Component Longevity
High-temperature capacitors ensure the unit lasts longer under demanding thermal conditions.
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4. CORSAIR RM1000x ATX 3.1 – Editor's Choice
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular
Native 12V-2×6 connector
Cybenetics Gold certified
Fully modular design
ATX 3.1 compliant
The CORSAIR RM1000x stands out as a top recommendation with its native 12V-2×6 connector supporting the latest generation GPUs without adapters. It combines high efficiency with excellent cable management features for a clean build aesthetic.
Pros
- Native 12V-2×6 connectivity
- Low-profile embossed cables
- Cybenetics Gold efficiency
- ATX 3.1 compliant design
- Flexible cable management
Cons
- Premium pricing compared to entry units
- Limited color options available
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Cybenetics Gold certification ensures energy savings and lower heat output during operation. The embossed cables are ultra-flexible and come with low-profile combs making routing and tidying cables significantly easier for users.
While the price reflects its premium features, the convenience of direct GPU connectivity and high efficiency justifies the investment. It is designed to resist transient power spikes effectively ensuring system stability under heavy load.
Ideal for high-end gaming or workstation builds requiring the latest standards, this unit offers reliability and modern features. Users seeking a balance of performance and build quality will appreciate this versatile power supply.
Modern Connectivity
Direct 12V-2×6 support eliminates adapters for safer and cleaner GPU power delivery.
Cable Flexibility
Embossed cables are easy to route and maintain a professional look inside your case.
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5. Thermaltake Toughpower GF A3 1050W – Future Proof
Thermaltake Toughpower GF A3 1050W
1050 Watt continuous power
12V-2×6 connectors included
80+ Gold certified
10 year warranty
The Thermaltake Toughpower GF A3 offers a robust solution for future hardware with True 600W 12V-2×6 connectors. It supports upcoming GPUs and maintains ATX 3.1 compliance for reliable performance in modern systems.
Pros
- True 600W 12V-2×6 connectors
- Long 10 year warranty coverage
- ATX 3.1 standard compliant
- High Amperage single rail
- Modular low-profile cables
Cons
- Gold efficiency vs Platinum options
- Price higher than entry units
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A standout feature is the 10 year warranty which provides long-term peace of mind for builders. The high amperage single +12V rail ensures consistent power delivery across all components during demanding tasks.
While it uses Gold certification, the performance remains solid for most high-end gaming setups. The fully modular design allows for efficient cable management, keeping the interior of the case organized and cool.
This PSU is perfect for those planning to upgrade GPUs soon. It offers a blend of future-ready connectors and solid build quality that supports stable operations in powerful workstations or gaming rigs.
Future GPU Support
True 600W connectors support next-gen graphics cards directly without needing adapters.
Warranty Assurance
A decade of coverage highlights the manufacturer's confidence in the unit's build quality.
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6. Asus ROG Strix 1000W Platinum – Best Premium
Asus ROG Strix 1000W Platinum White PSU
GaN MOSFET technology
White aesthetic design
Intelligent voltage stabilizer
0dB zero RPM mode
The Asus ROG Strix 1000W Platinum combines premium features with a striking white aesthetic for high-end builds. Its GaN MOSFET technology and Intelligent Voltage Stabilizer deliver superior power delivery efficiency for smooth gaming performance.
Pros
- GaN MOSFET efficiency boost
- Intelligent voltage stabilizer
- 0dB silent operation mode
- Dual ball fan bearings
- Premium white build design
Cons
- Highest price point listed
- White variant may cost more
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Dual ball fan bearings ensure a long operational life compared to standard sleeve bearings. The 0dB technology allows the fan to stop completely during light loads for absolute silence during browsing or light tasks.
While it commands a premium price, the unique stabilization tech offers distinct advantages for high-end GPUs. The larger heatsinks and internal layout prioritize cooling ensuring consistent performance under demanding thermal conditions.
Ideal for enthusiasts building a showcase PC, this unit offers reliability and style. It is a top choice for those seeking cutting-edge technology and a clean white color scheme in their power supply.
Advanced Efficiency
GaN MOSFET technology improves power delivery efficiency by up to 30 percent.
Stable Power
GPU-FIRST voltage sensing ensures smoother gameplay and unwavering performance stability.
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7. CORSAIR RM1000x ATX 3.1 – Consistent Performance
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W
Fully modular system
Cybenetics Gold certified
Native 12V-2×6 connector
ATX 3.1 compliant
The CORSAIR RM1000x ATX 3.1 offers a reliable balance of performance and modern features for demanding users. Its modular design and low noise fan make it a solid choice for gaming and creative workflows requiring stable power.
Pros
- High efficiency rating
- Native 12V-2×6 connectivity
- Low noise operation
- Embossed cable design
- Modular build flexibility
Cons
- Similar to other RMx models
- Slightly higher cost
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Featuring a native 12V-2×6 connector, this unit supports the latest GPUs without requiring adapter conversions. The Cybenetics Gold certification ensures energy savings and cooler operation compared to less efficient alternatives on the market.
Users benefit from embossed cables that are easy to route and improve airflow inside the case. The ATX 3.1 compliance provides headroom for transient power excursions ensuring system stability during heavy loads.
This PSU is ideal for gamers and professionals seeking proven reliability. Its consistent performance and modern connectivity make it a safe choice for building a high-performance system without unexpected issues.
Energy Efficiency
Cybenetics Gold certification reduces power waste and lowers heat output during operation.
Modern Connectivity
Direct 12V-2×6 support ensures safe and stable power delivery to next-gen GPUs.
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8. MSI MPG A1000GS PCIE5 II – Gaming Ready
MSI MPG A1000GS PCIE5 II
Server-grade capacitors
Dual 12V-2×6 cables
8-pin PCIe x3 support
10 year warranty
The MSI MPG A1000GS PCIE5 II supports next-gen GPUs with dual native 12V-2×6 cables for direct connection. It features server-grade capacitors rated for high temperatures ensuring durability and long-term reliability in gaming rigs.
Pros
- Server-grade component quality
- Dual 12V-2×6 cables included
- Low noise operation
- Robust industrial protections
- Affordable price point
Cons
- Slightly lower rating than others
- Limited cable length
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Industrial level protection covers a wide range of scenarios including OCP and OTP to safeguard your components. The embossed jacket cables offer improved flexibility making routing easier in cases with tight cable management constraints.
Supporting AMD and NVIDIA GPUs with multiple PCIe connectors, it adapts to various build configurations. The low noise design ensures quiet operation even when pushing hardware to its limits during demanding sessions.
This PSU is suitable for gamers seeking value and reliability. Its comprehensive protection and dual 12V-2×6 connectors make it a versatile choice for high-performance builds requiring stable power delivery.
Component Durability
Server-grade 105C capacitors ensure stable operation even under high thermal stress.
Safety Protections
Industrial level protections guard against power surges and electrical faults effectively.
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9. be quiet! Power Zone 2 1000W – Silent Operation
be quiet! Power Zone 2 1000W
Platinum efficiency rating
Semi-passive Zero RPM cooling
140mm Pure Wings fan
12V-2×6 angled connector
The be quiet! Power Zone 2 1000W excels in silence thanks to its large 140mm fan and semi-passive cooling design. It operates at zero RPM under light loads making it ideal for quiet home and office systems.
Pros
- Exceptionally quiet operation
- High energy efficiency rating
- Large fan for better cooling
- Future-proof ATX 3.1
- German engineering design
Cons
- Slightly lower price point value
- Design may not appeal to all
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Platinum efficiency ensures minimal energy waste and cooler internal temperatures during operation. The 12V-2×6 connector is included at a 90-degree angle to fit perfectly in cases with tight connector clearance issues.
German engineering highlights the quality of components and design used in this unit. It handles massive transient loads with ease ensuring stable power delivery for next-gen processors and graphics cards.
This PSU is perfect for users prioritizing silence and efficiency. Its reliable performance and thoughtful design make it a top choice for professional audio or gaming setups where noise levels matter.
Silent Operation
Zero RPM mode allows the fan to stop completely during low workloads for absolute quiet.
Efficiency Rating
Platinum certification ensures high energy efficiency and lower power consumption costs.
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10. NZXT C1000 Gold Core – Reliable Core
NZXT C1000 Gold Core
135mm FDB fan
80+ Gold certified
Zero RPM fan mode
Embossed modular cables
The NZXT C1000 Gold Core delivers stable performance with a whisper-quiet FDB fan that stops during light loads. Its dual-color 12V-2×6 connector ensures safe and efficient power delivery for next-generation GPUs.
Pros
- Whisper-quiet operation mode
- Cybenetics Platinum efficiency
- Premium capacitors included
- Modular design flexibility
- 7 year warranty coverage
Cons
- Standard Gold vs Platinum rating
- Limited color options
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Cybenetics Platinum efficiency provides energy savings and cooler operation. Premium 105C capacitors ensure long-lasting reliability while the 7-year warranty offers confidence in the product quality and durability.
Fully modular with embossed cables, it allows for clean cable management in standard cases. The 135mm fan maintains low noise levels even under demanding loads ensuring a pleasant user experience.
This PSU is well-suited for general gaming and workstation builds. It offers a reliable balance of efficiency and build quality with the trusted NZXT brand reputation for quality and service.
Quiet Performance
Fluid dynamic bearing fan ensures long life and near-silent operation during use.
Efficiency Rating
Gold and Cybenetics Platinum ratings ensure reduced power waste and heat generation.
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Buying Guide – How to Choose the Best 1100W PSU
Choosing the right power supply involves understanding wattage needs and efficiency standards for your specific build requirements.
Wattage Requirements
Determine your total system power draw by calculating GPU and CPU TDP plus peripherals. A 1100W unit is ideal for high-end multi-GPU setups or extreme overclocking scenarios.
Ensure the PSU has enough headroom to handle transient spikes without shutting down or stressing components.
Efficiency Ratings
Look for 80+ Gold or Platinum ratings to reduce wasted energy and heat. Higher efficiency often correlates with better component quality and longevity over time.
Efficiency impacts electricity costs and operating temperature, so choose based on your usage patterns and local energy rates.
Connector Compatibility
Check that the PSU offers enough PCIe connectors for your GPU. Modern units often include native 12V-2×6 connectors for the latest graphics cards.
Verify that all required SATA or Molex connectors are available for your storage and legacy device needs.
Modular Design
Fully modular PSUs allow you to connect only needed cables reducing clutter and improving airflow. This feature is vital for clean builds and better cooling.
Semi-modular units usually have essential cables fixed which may limit aesthetics in smaller cases.
Standards Compliance
ATX 3.1 compliant PSUs support high transient power spikes from modern GPUs. This ensures stability during demanding gaming or rendering sessions.
PCIe 5.1 readiness guarantees your PSU is ready for future hardware without requiring adapters or replacements soon.
Noise Levels
Look for PSUs with large fans and zero RPM modes for silent operation. Fan quality impacts how loud the unit is during light and heavy loads.
Sleeve bearings may be noisier over time so ball or fluid dynamic bearings offer longer life.
Build Quality
Premium capacitors like 105C rated types ensure longevity and reliability under heat stress. Internal layout and heatsinks play a role in heat dissipation.
Robust build quality reduces failure risk and improves overall system stability during peak performance periods.
Warranty Coverage
Check warranty length ranging from 5 to 10 years. Longer warranties often signal manufacturer confidence in the product quality and support.
A strong warranty plan ensures support is available if the unit fails unexpectedly during its operational life.
How to Use and Care for Your 1100W PSU
Install the PSU in a well-ventilated section of the case ensuring all intake and exhaust paths remain clear of obstructions.
Connect only the cables you need to your components to maximize airflow and maintain a tidy interior build layout.
Periodically dust the PSU intake vents and fan blades to prevent heat buildup and ensure long-term quiet operation.
Frequently Asked Questions
Is a 1100W PSU necessary for a single GPU build?
While not strictly necessary, a 1100W PSU offers significant headroom for future upgrades. It ensures stable power during transient spikes and reduces noise by running the fan at lower speeds.
What is the difference between Gold and Platinum efficiency?
Platinum rated units are more efficient than Gold ones typically saving more electricity and generating less heat. This often justifies the higher cost for continuous use cases.
Are modular cables worth the extra cost?
Yes, modular cables improve cable management and airflow inside the case. This leads to better cooling performance and a cleaner looking build overall.
What does ATX 3.1 compliance mean for my build?
ATX 3.1 compliant PSUs support high transient power excursions from modern GPUs without shutting down. This ensures stability during intensive tasks like gaming or rendering.
How do I know if a PSU fits my case?
Check your case specifications for supported PSU sizes and cable routing options. Ensure there is enough clearance for the unit and modular cable connectors.
Why choose a PSU with 105C capacitors?
Higher temperature capacitors withstand heat stress better extending the lifespan of the unit. This ensures consistent performance even under demanding thermal conditions.
Final Thoughts on Choosing the Best 1100W PSU
We reviewed ten top units ranging from budget options to premium models with advanced features like native 12V-2×6 connectors and ATX 3.1 compliance.
Prioritize efficiency and connector availability based on your specific GPU needs and upgrade path to ensure long-term stability and performance.
Prices fluctuate often so verify current listings and warranties before finalizing your purchase to secure the best deal available.