Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
80+ Platinum efficiency
Modular cable design
High power output
Affordable renewed option
In this guide
Finding a reliable power supply is critical for any high-performance PC build. A 1100W unit ensures you have enough headroom for powerful GPUs and CPUs without worrying about stability or safety during intense workloads.
We have evaluated ten top-rated units based on efficiency ratings, modular cabling, build quality, and modern standards like ATX 3.1. Each selection meets rigorous criteria for performance and reliability in demanding environments.
Every pick highlights key strengths and potential trade-offs to help you decide. Prices and availability fluctuate frequently, so verify current details before purchasing to ensure you get the best value for your system needs.
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
Fully modular cables
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
Dual ball bearings
0dB silent mode
Top 10 Best 1100W PSU in 2026 Compared
This table compares the top ten power supply units side by side. You can quickly assess efficiency ratings, warranty terms, and connector types to determine which model fits your specific system requirements.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
80+ Platinum rated
PowerEdge R730
Fixed cabling design
Server grade unit
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
80+ Platinum efficiency
Modular cables
Renewed condition
High wattage output
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
ATX 3.1 certified
Fully modular PSU
105C capacitors
Low noise 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
Cybenetics Gold rated
Native 12V-2×6
ATX 3.1 standard
Embossed 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
10 Year warranty
80+ Gold certified
12V-2×6 ready
Single +12V 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 tech
80+ Platinum eff
Intelligent voltage
Dual ball bearing
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
Cybenetics Gold eff
12V-2×6 native
Fully modular design
Low-profile combs
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
Dual 12V-2×6
10 Year warranty
Server-grade caps
Industrial protection
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
80+ Platinum cert
Zero-RPM cooling
German engineering
12V-2×6 angled
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
80+ Gold rated
ATX 3.1 certified
FDB fan zero rpm
7 Year warranty
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU (PR21C) – Server-Grade Reliability
Dell 1100W EPP 80+ Platinum PSU (PR21C)
PowerEdge R730
80+ Platinum eff
Fixed cabling
1100 watt max
The Dell PR21C 1100W power supply is designed primarily for the PowerEdge R730 server line. It offers robust performance and Platinum efficiency ratings suited for always-on data environments or specialized workstation builds requiring steady power delivery.
Pros
- High wattage output
- Platinum efficiency
- Durable construction
- Compatible with servers
Cons
- Fixed cables only
- No modern ATX
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Its primary strength lies in its high capacity and efficient operation under load. The unit is built to handle demanding server workloads consistently without degradation over time. This makes it an interesting choice for users needing raw power and durability over aesthetic features.
A trade-off is the fixed cabling which limits flexibility in standard PC cases. Additionally it lacks support for modern ATX 3.1 standards found in consumer gaming units. Users must ensure case clearance for bulky non-modular connectors before purchase.
This PSU is best suited for server replacements or specialized industrial use cases. It provides a reliable 1100 watt solution for those who need enterprise-grade hardware rather than consumer-focused features like RGB or flexible modular cables.
Efficiency and Performance
The Platinum efficiency ensures low energy waste and heat generation even under heavy server loads.
Form Factor Considerations
Due to its proprietary design you may need adapters to fit it into a standard ATX chassis safely.
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2. Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed) – Best Budget Option
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
80+ Platinum eff
Modular cables
1100 watt max
Renewed condition
The renewed Dell CMPGM offers 1100W of power at a fraction of the cost of new consumer units. It brings Platinum efficiency and modular cabling to budget-conscious builders who prioritize raw performance over brand new condition or warranties.
Pros
- Very affordable price
- Platinum efficiency
- Modular design
- High power capacity
Cons
- Condition varies
- Server specific design
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Key strengths include the high wattage capability and the ability to connect only necessary cables. This reduces clutter inside the case and improves airflow. Many users report stable operation similar to new units making it a smart choice for secondary or budget rigs.
The main risk involves the renewed condition which can vary between units. Warranty support might be limited compared to buying from major consumer brands. Ensure you have a reliable return policy when purchasing refurbished server hardware for personal use.
Ideal for hobbyists seeking high wattage on a tight budget. It delivers excellent value if you can verify the specific unit health and accept the potential risks of buying refurbished hardware for critical components like power supplies.
Cost Efficiency
You save significantly on the upfront cost while still getting high efficiency ratings and decent performance.
Modular Cabling
Unlike the PR21C this model includes modular cables making installation easier in standard computer cases.
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3. CORSAIR RM1000e (2025) – Future Ready Performance
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply – Black
ATX 3.1 certified
Fully modular PSU
105C capacitors
Low noise fan
The CORSAIR RM1000e from 2025 brings ATX 3.1 compliance to an affordable platform. It supports PCIe 5.1 and handles transient spikes with ease. This unit is perfect for users wanting modern standards without breaking the bank on top-tier pricing.
Pros
- ATX 3.1 ready
- Fully modular design
- Silent operation
- Reliable components
Cons
- Lower wattage than 1100W
- Entry tier model
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Its fully modular design allows for clean cable management and improved airflow. The fan curve is optimized for low noise even under load thanks to the rifle bearing technology. High temperature capacitors ensure steady performance and reliability over years of use.
While it lacks the sheer 1100W capacity of older units it offers better modern compatibility. The trade-off is slightly lower peak power which may matter for extreme multi-GPU setups. Most high-end single GPU systems will find it sufficient.
Buy this if you prioritize future-proofing and silence over raw wattage. It is an excellent choice for modern gaming rigs and workstations that require ATX 3.1 features but do not strictly need 1100W power.
ATX 3.1 Compliance
This standard ensures your PSU can handle the sudden power demands of next generation graphics cards.
Acoustic Performance
The calculated fan curve keeps noise levels down so you can focus on gaming or work without distraction.
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4. CORSAIR RM1000x ATX 3.1 – 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
Cybenetics Gold eff
Native 12V-2×6
ATX 3.1 standard
Embossed cables
The CORSAIR RM1000x stands out with its native 12V-2×6 connector. This eliminates the need for adapters when connecting next-gen GPUs. Cybenetics Gold certification confirms high efficiency and low heat output. It is a top choice for stable modern builds.
Pros
- Native GPU connector
- Gold efficiency
- High reliability
- Flexible cables
Cons
- No 1100W option
- Standard 1000W
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Build quality is exceptional with embossed cables that are flexible and easy to route. The design supports ATX 3.1 power standards ensuring resilience against transient spikes. This PSU delivers quiet operation and consistent voltage for sensitive components.
While it caps at 1000W rather than 1100W it offers better safety margins for current hardware. Users might need more power for extreme multi-GPU configurations. For most high-end gaming rigs this wattage is more than enough for stable performance.
Choose this for a balanced mix of modern features and reliability. It is ideal for builders who want clean cable management and native support for upcoming graphics cards without complex adapter solutions.
Connector Technology
The native 12V-2×6 connector reduces points of failure and ensures a safe direct connection to your GPU.
Cable Flexibility
Embossed cables allow you to route them neatly behind the motherboard tray for a clean final look.
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5. Thermaltake Toughpower GF A3 1050W – High Capacity Choice
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
10 Year warranty
80+ Gold certified
12V-2×6 ready
Single +12V rail
Thermaltake Toughpower GF A3 offers 1050W of power with full ATX 3.1 compliance. It features a single +12V rail that provides high amperage for demanding components. The 10-year warranty reflects confidence in its longevity and internal build quality.
Pros
- Long warranty
- High rail current
- ATX 3.1 ready
- Gold efficiency
Cons
- Gold vs Platinum
- Wider footprint
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It supports future NVIDIA RTX 50 Series cards with native connectors. The Gold certification ensures solid efficiency without costing as much as Platinum models. This makes it a strong contender for those prioritizing warranty and compatibility over top efficiency.
The unit is slightly less efficient than Platinum options which might generate more heat. Build quality is robust but aesthetics are standard. Users looking for premium looks might prefer other brands but performance remains reliable.
Best for those who want a long warranty and high wattage at a reasonable price. It handles modern hardware with ease and provides peace of mind with its decade of coverage for critical system parts.
Rail Capacity
A single high amperage rail delivers stable power to all components simultaneously without distribution issues.
Warranty Value
A 10-year warranty protects your investment against defects and ensures reliable support over the product lifecycle.
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6. Asus ROG Strix 1000W Platinum White – Best Premium
Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 80+ Platinum, ATX 3.1, PCIe 5.0, GaN MOSFET, Intelligent Voltage Stabilizer
GaN MOSFET tech
80+ Platinum eff
Intelligent voltage
Dual ball bearing
The Asus ROG Strix 1000W Platinum White is a standout for premium builds. It uses GaN MOSFETs for better efficiency and cooler operation. The intelligent voltage stabilizer enhances GPU power delivery for smoother gameplay performance.
Pros
- Premium aesthetics
- Advanced components
- Silent operation
- GPU voltage sense
Cons
- Higher price
- White only option
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Its white design fits aesthetic builds perfectly while maintaining high performance. Dual ball bearings ensure long fan life and quiet operation. The unit handles transient spikes well thanks to ATX 3.1 standards and quality internal engineering.
The main drawback is the high price point compared to standard units. The white cables may require careful management if your case isn't white. However the build quality and features justify the cost for enthusiasts seeking top-tier hardware.
Choose this if you want the best performance and aesthetics. It is perfect for high-end gaming rigs where visual consistency and advanced voltage regulation are key priorities for your system build.
GaN MOSFET
Gallium Nitride components allow for better heat management and higher efficiency than standard silicon parts.
Voltage Stabilizer
Intelligent voltage stabilization ensures consistent power delivery to your GPU under heavy gaming loads.
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7. CORSAIR RM1000x ATX 3.1 – High Reliability
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply – Black
Cybenetics Gold eff
12V-2×6 native
Fully modular design
Low-profile combs
This CORSAIR model delivers consistent performance for high-end gaming builds. It supports ATX 3.1 and offers native 12V-2×6 connectivity. Gold efficiency ensures low power waste and reliable operation across various workloads.
Pros
- Reliable performance
- Modular cables
- Silent operation
- Gold efficiency
Cons
- Standard 1000W
- Higher price
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The fully modular design with low-profile combs makes cable management easier. It keeps noise levels low even under demanding loads. Build quality reflects standard expectations for CORSAIR premium units with durable internal components.
It may cost more than budget alternatives but offers better support. Some users find the price high for Gold certification. If you prefer a proven brand with robust support this is a solid choice.
Best for gamers prioritizing reliability and brand trust. It ensures your high-end system stays powered efficiently without needing extra adapters for new GPU technology.
Modular Design
Connect only the cables you need to improve airflow and reduce clutter within your PC case.
Noise Levels
Low-noise fan technology ensures the power supply runs silently even during intensive gaming sessions.
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8. MSI MPG A1000GS PCIE5 II – Gaming Focused
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
10 Year warranty
Server-grade caps
Industrial protection
MSI MPG A1000GS targets gaming enthusiasts with dual 12V-2×6 cables out of the box. It supports ATX 3.1 standards to handle transient spikes safely. Server-grade capacitors ensure stability and longevity for critical power delivery.
Pros
- Dual GPU cables
- Long warranty
- Durable capacitors
- ATX 3.1 ready
Cons
- Average rating
- Higher price
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Its 10-year warranty matches top competitors in reliability. The industrial protection circuit safeguards against voltage spikes and surges. This unit is built to support demanding gaming rigs without unexpected shutdowns or failures.
While it includes modern features it holds a slightly lower average rating. Some users report minor cable stiffness or noise issues. Performance remains solid for most setups though premium features cost more than basic models.
Buy this if you need multiple GPU cables or a long warranty. It provides robust protection for high-end gaming systems where power consistency is vital during intense loads.
Capacitor Quality
Server-grade capacitors withstand high temperatures and maintain performance stability over time.
Dual Connectors
Dual 12V-2×6 connectors simplify cabling for GPUs with two power inputs.
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9. be quiet! Power Zone 2 1000W – Silent Excellence
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
80+ Platinum cert
Zero-RPM cooling
German engineering
12V-2×6 angled
be quiet! Power Zone 2 offers 80+ Platinum efficiency and zero RPM cooling. It runs silent under low loads thanks to the large 140mm fan. German engineering ensures consistent voltage regulation and safety for your components.
Pros
- Platinum efficiency
- Silent operation
- German quality
- Angled connectors
Cons
- Premium price
- Heavier weight
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Its ATX 3.1 compliance includes an angled 12V-2×6 connector. This makes routing easier on modern GPUs. The design focuses on thermal management with high quality internal components. It delivers stable power for demanding gaming rigs.
The unit is heavier due to its quality build. You might pay more for this level of acoustic performance. However for those prioritizing silence and efficiency this unit offers excellent value.
Best for quiet builds needing reliable modern features. It delivers steady power while keeping noise levels to an absolute minimum for serene workspaces.
Zero RPM Fan
Fan stops completely under light load ensuring total silence during everyday tasks like browsing.
German Engineering
Designed in Germany it meets strict quality and safety standards for consistent performance.
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10. NZXT C1000 Gold Core – Sleek Design
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply, 80+ Gold
80+ Gold rated
ATX 3.1 certified
FDB fan zero rpm
7 Year warranty
NZXT C1000 Gold Core combines sleek looks with ATX 3.1 readiness. It features an FDB fan with Zero RPM mode for silent operation. Gold efficiency ensures stable performance and low energy waste for modern systems.
Pros
- Sleek aesthetics
- Zero RPM mode
- High efficiency
- Modern ready
Cons
- Lower warranty
- Higher price
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The unit supports next-gen GPUs with 12V-2×6 connectors. Its design prioritizes clean looks with embossed cables. The 105C capacitors ensure reliability during demanding workloads. It offers consistent voltage delivery and safety.
Warranty coverage is shorter than some competitors. You pay a premium for the NZXT brand design. If aesthetics and silence matter most this model is a strong contender despite the higher price.
Ideal for stylish builds prioritizing low noise. It ensures your system runs quietly and efficiently without compromising on modern power delivery standards.
Zero RPM Mode
Fan stops spinning at low loads to provide absolute silence when full power isn't needed.
Sleek Design
The minimalist look fits well in open cases or builds where the PSU is visible.
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Buying Guide – How to Choose the Best 1100W PSU
Selecting a power supply requires balancing wattage efficiency and modern standards. This guide explains the key factors to consider when buying a unit for your system.
Wattage Requirements
Ensure your total system power draw is well below the PSU capacity. A 1100W unit provides ample headroom for high-end GPUs and multiple components. Overhead prevents throttling and extends component life during peak loads.
Always calculate your CPU and GPU draw plus 30 percent headroom for safety.
Efficiency Ratings
Efficiency ratings like 80+ Gold or Platinum determine how much energy is wasted as heat. Higher ratings save on electricity bills and reduce internal temperatures. This is vital for long-term system reliability.
Look for at least Gold certification to balance performance and energy savings.
ATX 3.1 and PCIe 5.1
Modern standards like ATX 3.1 ensure transient power spikes are managed safely. New GPUs often use the 12V-2×6 connector which must be supported. Without this you risk instability or adapter hazards.
Prioritize units with native 12V-2×6 connectors and ATX 3.1 compliance.
Modular Cabling
Fully modular units let you connect only the cables you need. This reduces clutter and improves airflow inside your case. Fixed units can make installation difficult and look messy.
Choose fully modular designs for easier cable management and cleaner builds.
Protection Features
Safety features like OVP OCP and SCP protect against surges and shorts. They prevent damage to your CPU GPU or motherboard during power events. Reliable protection is non-negotiable for high-end hardware.
Verify the unit lists all major safety protections in its specifications.
Warranty Support
A longer warranty indicates manufacturer confidence in the unit's quality. Premium models often offer up to 10 years of coverage. This reduces long-term costs if a failure occurs.
Aim for at least a seven-year warranty for peace of mind.
Build Quality
High-quality capacitors and fans ensure stable output over time. Japanese or Server-grade capacitors typically last longer. Good thermal management keeps internal components cool during intense sessions.
Check for quality capacitor ratings and fan technologies in reviews.
Noise Levels
Fan noise can distract during use so look for low-decibel ratings. Zero RPM modes stop the fan entirely at low loads. Silent units make for a better experience in home offices or gaming rooms.
Look for fan bearing technology like FDB or rifle bearings for quiet operation.
How to Use and Care for Your 1100W PSU
Install your PSU in the bottom rear of your case with the fan facing downward if possible. This intake pulls cool air directly from the floor for optimal cooling efficiency.
Connect only the cables you need to minimize clutter. Ensure the main ATX 24-pin and CPU 8-pin connectors are fully seated to prevent power loss during high loads.
Regularly check for dust buildup on the fan grill. Use compressed air to clean it every few months to maintain airflow and prevent overheating of internal components.
Frequently Asked Questions
Is 1100W enough for a dual GPU setup?
Yes 1100W typically provides enough headroom for dual high-end GPUs with one CPU. However check the specific power draw of your GPUs to ensure they stay below 80 percent of PSU capacity. Always use high-quality modular cables for stability.
Do I need ATX 3.1 for current GPUs?
ATX 3.1 is not strictly required for current GPUs but offers better safety against transient spikes. Newer cards use the 12V-2×6 connector which this standard supports natively. It is highly recommended for future-proofing your build.
What happens if I use a non-modular PSU?
Non-modular PSUs come with all cables permanently attached. This can create clutter and restrict airflow inside your case. You will need to secure unused cables which can make your build look messy compared to modular options.
Are renewed power supplies safe?
Renewed units can be safe if they come from reputable sellers with clear return policies. Check for signs of damage and test them with a multimeter if possible. New units generally offer better peace of mind with full warranties.
How do I choose between Gold and Platinum efficiency?
Gold offers solid efficiency suitable for most gaming systems. Platinum reduces heat and noise further which is ideal for silent builds or high-power usage. The cost difference is often minimal so Platinum is better for long-term savings.
What is the lifespan of a high-end PSU?
High-quality PSUs typically last between 7 to 10 years under normal conditions. Quality capacitors and cooling systems help achieve this longevity. Regular maintenance like dust cleaning also extends operational life significantly.
Final Thoughts on Choosing the Best 1100W PSU
We highlighted ten reliable units ranging from budget-friendly server options to premium consumer models. The CORSAIR and Dell renewed picks offer excellent value for specific use cases.
Prioritize ATX 3.1 compliance and modular cabling for modern systems. Safety features and warranty length should guide your decision over brand name alone.
Always check current prices and stock before buying as availability fluctuates. Ensure you verify exact specs match your motherboard and GPU requirements.