Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High efficiency 80+ Platinum rating
Modular cables for clean builds
Renewed condition with savings
In this guide
Finding a reliable power supply is crucial for high performance builds. A 1100W PSU offers headroom for future upgrades and intense workloads without compromising stability during peak usage times.
We evaluated ten top rated units based on efficiency ratings, cable management features, and adherence to modern ATX standards. Each product brings unique strengths for different system configurations and budget levels.
Each pick highlights key specifications and real world performance traits. Prices and availability fluctuate frequently so verify current listings before making your final purchase decision for your setup.
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 support
Cybenetics Gold efficiency certified
Fully modular low noise design
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 for efficiency
Intelligent voltage stabilizer included
Premium white aesthetic design
Top 10 Best 1100W PSU in 2026 Compared
Below is a side by side comparison of all ten power supply units reviewed in this guide to help you choose the right model for your needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W continuous power output
80+ Platinum efficiency rating
Server grade component quality
Compatible with PowerEdge R730
4.8Editor score
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W high wattage capacity
80+ Platinum efficiency standard
Modular cable management system
Renewed condition with warranty
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
ATX 3.1 certified standard
Fully modular cabling design
105°C rated capacitors
Rifle bearing fan technology
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
Cybenetics Gold efficiency rated
Native 12V-2×6 connector
ATX 3.1 compliant design
Embossed low profile cables
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 continuous power rating
80+ Gold certification level
10 Year manufacturer warranty
Single +12V high amperage rail
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
GaN MOSFET efficiency tech
Intelligent voltage stabilizer
80+ Platinum efficiency rating
Dual ball fan bearings
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
ATX 3.1 power standard
Fully modular cabling system
Cybenetics Gold efficiency
Native 12V-2×6 connector
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
10 Year warranty coverage
Dual 12V-2×6 cables
Server-grade capacitors inside
Industrial level protection suite
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
80+ Platinum efficiency certified
Semi-passive zero RPM cooling
Large 140mm Pure Wings fan
German design and engineering
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
ATX 3.1 certified standard
Cybenetics Platinum efficiency rating
FDB fan with zero RPM
7 Year warranty included
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU – Best for Enterprise Server Builds
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W high wattage output
80+ Platinum efficiency rating
Server grade component build
Optimized for PowerEdge R730
This Dell 1100W unit is engineered for enterprise environments requiring stable high power delivery. It carries an 80+ Platinum efficiency rating ensuring minimal energy waste during continuous server operations over long periods.
Pros
- High wattage for heavy loads
- Platinum efficiency reduces electricity costs
- Robust server grade construction
- Reliable for continuous operation
- Strong voltage regulation under load
Cons
- Designed for specific server chassis
- May not fit standard consumer cases
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The internal components are built to withstand constant usage typical in data centers. Voltage regulation remains steady even when connected to demanding workloads ensuring consistent performance for critical applications without unexpected interruptions.
While powerful this PSU is optimized for Dell PowerEdge R730 chassis which limits consumer adoption. Users must verify physical compatibility with their case dimensions before purchasing to ensure proper fit and cooling airflow.
Ideal for IT professionals upgrading existing server infrastructure this unit provides dependable power. If you need a high wattage supply for a specific server model this Dell option delivers reliability where standard consumer units fall short.
Enterprise Grade Reliability
Built for continuous operation this PSU minimizes downtime risks through robust component selection and thermal management designed for server racks.
Efficiency at Scale
Platinum certification ensures lower power consumption which translates to reduced cooling requirements and electricity costs for large server deployments.
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2. Dell 1100W EPP 80+ Platinum PSU (Renewed) – Best Value High Wattage Option
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W power capacity
80+ Platinum efficiency
Modular cable connections
Renewed with warranty
This renewed Dell PSU offers significant savings for users needing high wattage without paying premium prices. It maintains the 80+ Platinum efficiency standard which is rare at this price point in the current market for power supplies.
Pros
- Affordable price for 1100W
- High efficiency rating saves power
- Modular design for clean cables
- Renewed units inspected thoroughly
- Strong support for gaming systems
Cons
- Availability varies by vendor
- May lack modern ATX 3.1
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Modular cabling allows for cleaner builds and better airflow management inside standard PC cases. The renewed status ensures it has been tested and verified for proper operation before reaching the buyer reducing risk of early failures.
While it lacks newer ATX 3.1 features found in modern consumer units it still delivers stable power for current GPU models. Users should confirm connector availability for their specific components before installation to avoid needing adapters.
For budget conscious builders this unit represents excellent value for raw power output. If you need 1100W capacity for a multi GPU setup or heavy workstation this option provides reliability without breaking the bank.
Cost Effective Power
Renewed units undergo strict testing ensuring performance matches new units while offering substantial cost savings for high end system builds.
Modular Cable Flexibility
Only connect necessary cables to reduce clutter and improve case airflow which helps keep components cooler during intense workloads.
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3. CORSAIR RM1000e – Best Modern ATX 3.1 Power Supply
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
ATX 3.1 certified
1000W continuous output
Fully modular design
105°C rated capacitors
The CORSAIR RM1000e is built to meet the latest ATX 3.1 standards ensuring compatibility with upcoming GPU releases. It includes features designed to handle sudden power transients which are common in modern graphics cards during peak gaming sessions.
Pros
- Next gen ATX 3.1 standard
- Handles transient GPU power spikes
- Fully modular for cable management
- High temp capacitors for longevity
- Silent rifle bearing fan
Cons
- Not native 12V-2×6 included
- Price higher than non certified units
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Fully modular cabling gives builders flexibility to connect only necessary wires improving airflow inside the case. High temperature rated capacitors ensure stable electrical performance over many years of daily usage even under heavy computational loads.
While it lacks a native 12V-2×6 connector in the box it still supports PCIe 5.1 readiness with provided adapters. Users planning to upgrade to next gen GPUs should verify connector needs before installation to ensure smooth setup.
For enthusiasts investing in future proof hardware this PSU delivers the necessary reliability. If you want a power supply that grows with your system this model provides excellent support for modern platform standards and efficiency.
Future Proof Standards
ATX 3.1 compliance ensures your power supply supports next generation hardware requirements without needing immediate replacement as technology advances.
Silent Operation
Rifle bearing fan technology maintains quiet performance even at full load making this ideal for living room or noise sensitive systems.
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4. CORSAIR RM1000x – Best for Next Gen Graphics Cards
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
Native 12V-2×6 cable
Cybenetics Gold efficiency
ATX 3.1 compliant
Ultra flexible embossed cables
This RM1000x model stands out with a native 12V-2×6 connector eliminating the need for adapters on newer graphics cards. It meets Cybenetics Gold standards ensuring high efficiency and reduced power waste during everyday usage cycles.
Pros
- Direct 12V-2×6 connector included
- No adapter needed for new GPUs
- Excellent efficiency performance rating
- Sleek embossed cable design
- Resists transient power spikes well
Cons
- Premium pricing tier
- White version may cost more
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Embossed cables are ultra flexible making installation easier and routing cleaner inside tight PC cases. The unit handles power spikes from high end GPUs effectively preventing system crashes or shutdowns during demanding gaming tasks.
While priced higher than non certified units the direct GPU connection saves time and potential adapter issues later. Users prioritizing clean builds and modern GPU compatibility will appreciate the thought out connector choices included in the package.
For builders seeking top tier cable management and modern standard support this PSU is a strong choice. If you value premium features and reliability during high load usage this model delivers consistent performance and peace of mind.
Direct GPU Connection
Native connector compatibility means no intermediate adapters are required reducing connection points and potential failure risks in your power chain.
Enhanced Flexibility
Ultra flexible embossed cables simplify cable routing in compact cases helping maintain better airflow and overall system aesthetics.
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5. Thermaltake Toughpower GF A3 – Best for NVIDIA RTX 50 Series Ready
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
12V-2×6 connector native
80+ Gold certification
10 Year manufacturer warranty
Thermaltake delivers a robust 1050W unit designed specifically to support upcoming NVIDIA RTX 50 Series graphics cards. It features a true 600W 12V rail capacity ensuring ample headroom for high power GPUs without hitting limits during load.
Pros
- High wattage for multi GPU
- Ready for RTX 50 Series
- True 600W 12V rail
- Single +12V high amperage
- Low profile flat cables included
Cons
- Cable stiffness varies slightly
- Higher price point
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The single +12V rail design simplifies power distribution to components reducing risk of imbalance across the system. Fully modular cables come flat and low profile helping achieve a neat interior look even in cases with limited cable routing space.
A 10 Year warranty provides significant long term protection compared to standard industry offerings. While the unit is powerful users should ensure their case has enough clearance for the connector angles during installation for best results.
For those planning future GPU upgrades this PSU ensures you are ready for new releases. If you need a reliable high wattage supply with strong warranty support this Thermaltake option balances power capacity with practical design features.
Upgraded GPU Compatibility
Designed with next gen GPU power requirements in mind this supply ensures stable operation even as graphics hardware demands increase.
Extended Warranty Coverage
A decade of manufacturer support offers confidence in long term reliability and reduces worry about power supply failures after purchase.
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6. Asus ROG Strix 1000W Platinum – Best Premium Build Quality
Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer
GaN MOSFET technology
80+ Platinum rated
Intelligent voltage stabilizer
Dual ball fan bearings
The ROG Strix 1000W Platinum brings premium GaN MOSFET technology for superior efficiency and thermal performance. It includes an intelligent voltage stabilizer that improves power delivery to graphics cards ensuring smoother gameplay experiences.
Pros
- Premium GaN components inside
- Intelligent voltage stabilization
- White aesthetic for clean builds
- Long lasting bearing design
- 0dB silent mode active
Cons
- Price is very high
- White color not for all
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Large ROG heatsinks on internal components maintain lower temperatures even under peak loads. Dual ball fan bearings are rated for significantly longer life compared to standard sleeve designs helping the unit run quietly for years.
While the price is steep the build quality justifies the cost for enthusiasts. The white finish complements RGB focused builds though users must ensure it matches their case theme before purchasing to avoid aesthetic clashes.
If you value the absolute best components and design aesthetics this PSU stands out. For builders seeking a silent high performance unit with unique features this Asus model delivers top tier performance and style.
Advanced Component Tech
GaN MOSFETs reduce internal resistance allowing for more efficient power conversion and better heat dissipation within the casing.
Silent Mode Technology
0dB fan mode ensures the unit runs completely silent during light usage making it perfect for media centers or quiet offices.
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7. CORSAIR RM1000x – Best All Rounder for Modern Builds
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
ATX 3.1 support
Native 12V-2×6
1000W capacity
Embossed flexible cables
CORSAIR continues to deliver reliable power supplies with this RM1000x model featuring ATX 3.1 certification. It supports PCIe 5.1 with a native 12V-2×6 connector ensuring readiness for modern graphics hardware without extra adapters.
Pros
- Reliable Corsair brand quality
- Modern connector compatibility
- Flexible cable routing design
- Handles transient spikes well
- Efficient power conversion
Cons
- Higher cost than basic units
- Limited color options
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Embossed cables offer superior flexibility making cable management easier in tight spaces. The unit maintains high efficiency under varying loads reducing heat output and contributing to a quieter system environment overall.
Users should expect a premium price point for these advanced features. While not the cheapest option on the market the reliability and future proofing justify the investment for those planning long term builds.
For most gamers and creators needing a dependable power source this PSU is a solid choice. If you want a balance of modern features and proven reliability this RM1000x variant meets those needs effectively.
Modern Connector Support
Direct compatibility with latest GPU standards means fewer adapters and safer power delivery paths for high end graphics cards.
Efficient Design
High efficiency standards reduce wasted energy lowering electricity costs and heat generation inside your PC chassis.
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8. MSI MPG A1000GS – Best Gaming PSU with 10 Year 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
Dual 12V-2×6 cables
10 Year warranty
Server-grade capacitors
ATX 3.1 ready
MSI offers a strong contender with this A1000GS model featuring dual native 12V-2×6 cables for added convenience. It includes server-grade capacitors designed for longevity and reliability under demanding conditions over time.
Pros
- Two native 12V-2×6 cables
- Decade long warranty included
- Industrial level protections
- Flexible embossed cables
- Supports multi GPU setups
Cons
- Slightly lower rating
- Brand perception varies
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A 10 Year warranty provides extensive coverage giving builders peace of mind regarding longevity. The unit supports industrial level protections against various electrical faults ensuring safety for high value system components inside.
While ratings are good users should note the unit focuses on utility rather than high end aesthetic features. The cables are flexible and jacketed helping reduce cable clutter during installation and routing efforts.
For gamers needing reliable power with strong warranty backing this unit is a great pick. If you want a PSU that supports modern GPUs with minimal adapter needs this MSI model fits those requirements well.
Dual Connector Convenience
Two native 12V-2×6 cables allow for multiple GPU setups or backup connectivity without relying on adapters.
Robust Protection
Full suite of electrical protections safeguards components against surges and shorts ensuring safety for valuable PC hardware.
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9. be quiet! Power Zone 2 – Best Quiet Operation
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
80+ Platinum certified
Semi-passive zero RPM
Large 140mm fan
German engineering quality
be quiet! delivers a powerhouse with this Power Zone 2 unit certified for Platinum efficiency. It features a large 140mm Pure Wings fan optimized for low noise performance even at full load conditions.
Pros
- Extremely quiet operation
- Zero RPM fan mode
- High efficiency rating
- German design standards
- Supports ATX 3.1
Cons
- Price higher than Gold units
- Heavier than average
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Semi-passive cooling allows the fan to stay off during low usage reducing noise significantly. German engineering standards ensure robust construction helping the unit maintain stable power delivery and low temperatures over time.
Users should expect to pay more for these quiet features compared to Gold rated units. The PSU handles transient loads well ensuring stable performance when components draw sudden high power amounts.
For users prioritizing silence this PSU is a top choice. If you want a quiet system with high efficiency and modern standards this be quiet! model delivers outstanding acoustic performance.
Silent Fan Technology
Zero RPM mode ensures the fan only spins when needed reducing noise during idle or light usage scenarios.
German Precision
Designed and engineered in Germany the unit meets strict quality standards for reliability and thermal performance.
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10. NZXT C1000 Gold – Best Value ATX 3.1 Unit
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
ATX 3.1 certified
80+ Gold efficiency
FDB fan with Zero RPM
105°C capacitors
NZXT offers a strong value proposition with this C1000 Gold Core unit certified for ATX 3.1. It maintains 80+ Gold efficiency ensuring good power savings and lower heat generation during typical usage cycles.
Pros
- Solid ATX 3.1 features
- Competitive price point
- Whisper quiet operation
- Zero RPM fan mode
- 7 Year warranty
Cons
- Cable quality varies
- Limited colors
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The FDB fan stays quiet with Zero RPM mode during light loads reducing system noise when gaming. High quality capacitors rated for 105°C ensure stability during thermal stress and consistent power output.
While not the most premium option it covers essential modern standards effectively. Users should expect good performance for the price though cable management might not be as refined as higher end competitors.
For budget conscious builders needing modern features this unit is a smart pick. If you want ATX 3.1 support without overspending this NZXT model delivers reliable power and efficiency.
Affordable Modern Features
This unit brings ATX 3.1 and high efficiency to a competitive price range for mainstream builders.
Quiet Performance
Whisper quiet certification ensures minimal noise disruption keeping your system peaceful during work or play.
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Buying Guide – How to Choose the Best 1100W PSU
Selecting a power supply requires attention to wattage, efficiency, and connector compatibility for your components.
Efficiency Ratings
Efficiency ratings like 80+ Gold or Platinum indicate how much power is converted to useful energy versus heat. Higher ratings reduce electricity costs and internal heat making cooling easier.
Look for certified units to ensure you get the promised efficiency gains and better component longevity.
Modular Cabling
Modular designs allow you to connect only the cables you need reducing clutter and improving airflow inside the case. Non modular units have fixed cables that may go unused.
For high end builds choose fully modular options to maximize cable management and system cooling.
ATX 3.1 Compatibility
ATX 3.1 is the latest standard ensuring compatibility with next generation GPUs that handle transient power spikes safely. Units lacking this standard may use adapters or risk instability.
Prioritize ATX 3.1 certified models if you plan to use modern or upcoming graphics hardware.
Connector Types
Check if the PSU includes native 12V-2×6 connectors required by newer graphics cards. Adapters add connection points that can fail or reduce stability.
Ensure your selected unit has the correct cables for your GPU without requiring extra converters.
Fan Noise and Cooling
Fan design impacts how quiet your system remains under load. Fluid dynamic bearings and zero RPM modes help reduce noise during light usage periods.
Consider semi-passive cooling options if silence is a priority for your build environment.
Warranty and Support
Warranty length reflects the manufacturer confidence in component quality. Longer warranties like 10 years offer better protection against defects over time.
Check warranty terms and support options before purchasing to ensure peace of mind.
Build Quality
High quality internal components like capacitors and MOSFETs impact reliability and efficiency. Look for rated capacitors like 105°C for better heat tolerance.
Strong internal construction ensures stable power delivery under demanding workloads.
Budget and Value
Prices vary based on features and certifications. Balance your needs against your budget to avoid overspending on features you do not require.
Higher efficiency and connectors usually justify higher costs for long term savings.
How to Use and Care for Your 1100W PSU
Install the power supply in the designated spot with the fan facing the airflow intake or exhaust as required by your case design. Secure it with screws to prevent vibration and ensure stable positioning.
Connect only the necessary cables to your components. Leave unused modular cables disconnected to improve airflow and keep the interior clean for better cooling performance.
Periodically clean dust from the fan and case filters to maintain cooling efficiency. Keep the PSU vents unblocked and monitor temperatures during heavy usage to ensure optimal operation.
Frequently Asked Questions
What is the difference between ATX 3.0 and ATX 3.1?
ATX 3.1 improves upon 3.0 with stricter requirements for transient power handling. It ensures better stability for high end GPUs by managing power spikes more effectively without needing adapters.
Do I need a 1100W PSU for gaming?
Most current high end gaming setups work well with 850W to 1000W PSUs. A 1100W unit provides extra headroom for future upgrades or systems with multiple GPUs and heavy workloads.
Why are modular PSUs preferred?
Modular PSUs allow you to plug in only required cables. This reduces clutter inside the case improves airflow for cooling and simplifies cable management for a cleaner build.
How do I know if my PSU is 80+ Gold?
Look for the official 80 Plus Gold certification label on the PSU package or specification sheet. This label confirms it meets specific efficiency standards at varying load levels.
Can I use a 1100W PSU for a small case?
Yes but ensure the physical dimensions fit the case. Some 1100W units are larger so measure your case space carefully before purchasing to ensure a proper fit.
What is the 12V-2×6 connector?
The 12V-2×6 is a native power connector for next gen GPUs replacing the older 12VHPWR standard. It offers safer and simpler connections reducing adapter needs for new graphics cards.
Does a better warranty matter?
Longer warranties indicate higher build quality and manufacturer confidence. They provide better protection against failures and give you peace of mind for long term system reliability.
Final Thoughts on Choosing the Best 1100W PSU
We reviewed ten top units covering efficiency, connectors, and build quality for high power needs. Each model offers distinct strengths for server builds, gaming, or professional workstations.
Prioritize ATX 3.1 certification and modular design for future proofing. Ensure connector types match your components to avoid adapters and maximize system stability.
Always check current pricing and availability as these fluctuate frequently. Verify compatibility with your specific case and GPU before finalizing your purchase.