Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
Modular cables for clean routing
80 Plus Platinum efficiency rating
Suitable for graphics intensive systems
In this guide
Power supplies are the heart of any high performance computer system. A 1100W PSU delivers the clean and stable energy needed for top tier graphics cards and processors without strain or instability issues.
We evaluated ten top rated units based on efficiency ratings, cable management, noise levels, and connector support. This list covers options from leading brands to help you find the right fit for your build needs.
Each pick highlights key strengths and ideal use cases. Prices and stock levels change frequently so verify current availability before purchasing to ensure you get the best value for your investment today.
Top 3 Picks for Best 1100W PSU
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
4.7Editor score
Native 12V-2×6 connector support
ATX 3.1 compliant standard
Cybenetics Gold efficiency rating
Asus ROG Strix 1000W Platinum White PSU
4.7Editor score
GaN MOSFET for high efficiency
GPU-FIRST voltage sensing technology
Dual ball fan bearings for longevity
Top 10 Best 1100W PSU in 2026 Compared
The following table provides a side-by-side comparison of the top ten power supplies selected for this guide. It highlights essential specifications and key features to help you make an informed decision quickly.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W output capacity
80 Plus Platinum efficiency
Designed for PowerEdge R730
4.5Editor score
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W total output
80 Plus Platinum certified
Modular cable configuration
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready
1000W power output
Fully modular cabling
ATX 3.1 compliant
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular
Native 12V-2×6 connector
Low noise operation
Cybenetics Gold rated
4.7Editor score
Thermaltake Toughpower GF A3 1050W
1050W continuous power
80 Plus Gold certified
ATX 3.1 compatible
4.5Editor score
Asus ROG Strix 1000W Platinum White PSU
1000W output rating
80 Plus Platinum efficiency
GaN MOSFET technology
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1
1000W capacity
Full modular design
Low noise fan
4.5Editor score
MSI MPG A1000GS PCIE5 II
1000W power output
Dual 12V-2×6 cables
80 Plus Gold rated
4.3Editor score
be quiet! Power Zone 2 1000W
1000W continuous output
80 Plus Platinum certified
Semi-passive cooling
4.6Editor score
NZXT C1000 Gold Core
1000W power supply
80 Plus Gold efficiency
Whisper-quiet operation
4.6Editor score
1. CORSAIR RM1000x – Best Overall 1100W PSU
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
1000W continuous power
ATX 3.1 compliant
Native 12V-2×6 connector
The CORSAIR RM1000x is a top tier power supply designed for high end gaming and creative workstations. It holds a 4.7 rating and stands out for its fully modular design and modern ATX 3.1 compliance.
Pros
- Exceptional cable flexibility
- Low noise under load
- Gold efficiency rating
Cons
- Premium price point
- Limited color options
We may earn a commission when you buy through this link, at no additional cost to you.
This unit features a native 12V-2×6 connector that ensures compatibility with the latest graphics cards without needing adapters. The embossed cables are ultra flexible and make routing easier than most competitors in this class.
While the price is higher than standard options the build quality and efficiency justify the investment. The noise levels remain low even during demanding gaming sessions thanks to the optimized fan curve.
Buyers seeking a reliable future proof power solution should consider this unit. It balances performance silence and modern connectivity features better than most other 1000W options available today.
Modern Connectivity Standards
The ATX 3.1 and PCIe 5.1 support means this PSU can handle high transient power spikes from next gen GPUs without voltage drops or instability.
Cable Management Ease
Fully modular design allows users to connect only necessary cables reducing clutter inside the case improving airflow and aesthetics significantly.
We may earn a commission when you buy through this link, at no additional cost to you.
2. Dell 1100W EPP – Best Value 1100W PSU
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W output capacity
80 Plus Platinum efficiency
Modular cable design
This Dell unit offers 1100W of power with a 5.0 rating making it a strong choice for budget conscious builders. It is a renewed product which keeps costs down significantly compared to new units.
Pros
- Affordable pricing
- High efficiency rating
- Full modular cabling
Cons
- Limited warranty coverage
- Refurbished status risk
We may earn a commission when you buy through this link, at no additional cost to you.
The 80 Plus Platinum efficiency means less wasted energy and lower electricity bills over time. Modular cables help keep the build clean and organized which is vital for high performance systems.
While it is a renewed item it provides substantial power for intensive gaming setups. Users should be aware of the potential warranty limitations when opting for refurbished components.
For those needing high wattage without a high price tag this is an excellent option. It delivers reliable performance and essential features for most modern desktop configurations effectively.
Cost Effective Power
Buying renewed allows access to enterprise grade power specs at a fraction of the cost of premium consumer units while maintaining high efficiency.
High Wattage Support
At 1100W this supply can handle multiple GPUs or high end single GPU builds without bottlenecking or stability issues during peak loads.
We may earn a commission when you buy through this link, at no additional cost to you.
3. Dell 1100W EPP (PR21C) – Reliable Server PSU
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W high output
Platinum efficiency certified
Designed for PowerEdge
Designed primarily for server environments this Dell unit provides 1100W of stable power. It maintains a strong performance rating and is built for continuous heavy duty operation without fail.
Pros
- Robust industrial design
- High power capacity
- Efficient operation
Cons
- Limited compatibility outside server cases
- Heavy physical weight
We may earn a commission when you buy through this link, at no additional cost to you.
The 80 Plus Platinum rating ensures energy savings even during long run times. Its industrial build quality makes it durable though it may require custom mounting in standard desktop cases.
Users looking for raw power and efficiency often find this unit useful for high demand workstation builds. However standard connectors and form factors may need adaptation for home use.
This is best suited for advanced users comfortable with server hardware integration. It delivers on power reliability but lacks the consumer friendly features found in retail consumer PSUs.
Server Grade Durability
Components are selected for long term reliability under constant load which benefits workstations running 247 without shutdowns or maintenance interruptions.
High Efficiency Operation
Platinum certification reduces heat generation and power draw which is crucial for large compute clusters or dense multi GPU workstations.
We may earn a commission when you buy through this link, at no additional cost to you.
4. CORSAIR RM1000e – Solid Mid Range Option
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready
1000W power supply
ATX 3.1 compliant
Modern standby compatible
The RM1000e is a modern power supply built for efficiency and reliability. With a 4.7 rating it provides stable power for high end gaming PCs while keeping noise levels impressively low.
Pros
- Fully modular design
- Low noise operation
- High temp capacitors
Cons
- Fewer cables than x variant
- Standard fan size
We may earn a commission when you buy through this link, at no additional cost to you.
It features fully modular cabling which allows for cleaner builds. The high temperature rated capacitors ensure steady electrical performance over years of use without degradation or failure risks.
While it may have fewer peripheral cables than the x variant it covers essential needs for most users. It is a great balance of price and performance for modern ATX 3.1 systems.
Buyers wanting a clean quiet and reliable power source should find this compelling. It meets modern standards without the extra cost of top tier premium models effectively.
Energy Efficiency
The design focuses on minimizing power loss which translates to lower heat and better system longevity overall.
Quiet Operation
A custom fan curve keeps noise down even at full load which benefits quiet office or bedroom gaming rigs.
We may earn a commission when you buy through this link, at no additional cost to you.
5. Asus ROG Strix 1000W – Premium White Build
Asus ROG Strix 1000W Platinum White PSU
1000W output rating
80 Plus Platinum certified
GaN MOSFET tech
This ROG Strix unit is a high performance power supply with a premium white finish. It features GaN MOSFETs which offer better efficiency and cooler internal temperatures than traditional silicon components.
Pros
- Stunning white aesthetic
- Superior efficiency tech
- GPU-first voltage sensing
Cons
- High price tag
- Availability can be limited
We may earn a commission when you buy through this link, at no additional cost to you.
The intelligent voltage stabilizer ensures smoother gameplay by delivering power directly to the GPU. This technology enhances performance stability during intense gaming sessions or demanding rendering tasks.
While the price is higher the advanced features and sleek design justify it for enthusiasts. The large heatsinks and dual ball bearings further contribute to reliability and quiet operation over time.
For builders seeking a top tier unit with a distinct look this is ideal. It delivers on performance and aesthetics making it a favorite for high end custom builds.
Advanced Voltage Control
GPU-FIRST sensing optimizes power delivery to the graphics card reducing latency and improving frame consistency during demanding workloads.
GaN Technology Benefits
Gallium Nitride components enable smaller and more efficient power conversion which reduces heat and increases overall lifespan of the unit.
We may earn a commission when you buy through this link, at no additional cost to you.
6. Thermaltake Toughpower GF A3 1050W – Strong Warranty
Thermaltake Toughpower GF A3 1050W
1050W continuous power
True 600W 12V-2×6
80 Plus Gold certified
The Toughpower GF A3 provides 1050W of power with robust connectors for next gen graphics cards. It carries a 4.5 rating and is known for its extensive ten year warranty coverage.
Pros
- 10 year warranty
- True 12V-2×6 support
- Single +12V rail
Cons
- Slightly higher price
- Bulkier unit design
We may earn a commission when you buy through this link, at no additional cost to you.
This unit offers a true 600W 12V-2×6 connector which supports high power NVIDIA RTX series cards directly. It is fully modular with low profile cables for easier management in most cases.
The single +12V rail ensures stable power delivery to high end components. While slightly more expensive the warranty provides long term peace of mind for heavy users.
Buyers who value reliability and support will appreciate this option. It balances performance and protection effectively for those planning to keep their systems running for years.
Warranty Value
A 10 year warranty indicates strong confidence in component durability and reduces long term ownership risks significantly.
Next Gen GPU Ready
The native 12V-2×6 connector ensures stable power for high TGP graphics cards without relying on adapters or splitters.
We may earn a commission when you buy through this link, at no additional cost to you.
7. CORSAIR RM1000x – Proven Performance
CORSAIR RM1000x ATX 3.1 PCIe 5.1
1000W power output
Fully modular cabling
Low noise design
Another top pick from Corsair this RM1000x variant is built for stability and efficiency. With a 4.5 rating it offers the same modular and low noise benefits as the other x series models.
Pros
- Cybenetics Gold rated
- Native 12V-2×6
- Flexible embossed cables
Cons
- Price fluctuates often
- No RGB lighting
We may earn a commission when you buy through this link, at no additional cost to you.
It features a native 12V-2×6 connector which ensures compatibility with modern GPUs without extra adapters. The flexible cables make cable management straightforward and aesthetically pleasing.
While slightly more basic in some aspects it holds its own in performance and reliability. It is a solid choice for gamers who want dependable power without unnecessary features.
If you want a balanced unit with proven technology this is ideal. It delivers consistent power and quiet operation for most high end gaming rigs effectively.
Consistent Performance
Designed for steady voltage delivery this PSU maintains stability during peak gaming loads ensuring no frame drops or crashes.
Flexible Cabling
Embossed cables bend easily which improves airflow and reduces clutter inside the computer case significantly.
We may earn a commission when you buy through this link, at no additional cost to you.
8. MSI MPG A1000GS PCIE5 II – Gamer Focused
MSI MPG A1000GS PCIE5 II
1000W power output
Dual 12V-2×6 cables
80 Plus Gold rated
This MSI power supply is designed for gaming setups needing stable and efficient power. It features dual 12V-2×6 cables and server grade capacitors for durability and performance over time.
Pros
- Server grade capacitors
- Dual 12V-2×6 connectors
- 10 year warranty
Cons
- Mid range efficiency
- Limited color options
We may earn a commission when you buy through this link, at no additional cost to you.
The unit supports ATX 3.1 and PCIe 5.1 standards ensuring compatibility with latest graphics cards. Its 80 Plus Gold rating helps keep energy costs low while running high performance systems.
With a 10 year warranty it offers strong protection against defects. The cables are flexible and easy to route which helps keep the build clean and functional.
For gamers wanting quality without premium pricing this is a strong option. It balances modern connectivity with solid protection and reliable performance for daily use.
High Quality Components
Server grade capacitors ensure stability and longevity which is crucial for systems running intensive games or rendering apps daily.
Dual Connector Support
Providing dual 12V-2×6 connectors simplifies cabling for high power GPUs requiring more current than a single connector can supply.
We may earn a commission when you buy through this link, at no additional cost to you.
9. be quiet! Power Zone 2 – Whisper Quiet Option
be quiet! Power Zone 2 1000W
1000W continuous power
80 Plus Platinum certified
Semi-passive cooling
This be quiet! unit is engineered for silent operation without sacrificing performance. It carries a 4.6 rating and features semi-passive cooling that turns off the fan at low loads.
Pros
- Semi-passive fan mode
- Platinum efficiency
- German engineering
Cons
- Limited color options
- Slightly pricier
We may earn a commission when you buy through this link, at no additional cost to you.
It meets ATX 3.1 standards and includes a native 12V-2×6 connector. The Platinum efficiency ensures low power draw and reduced heat which helps maintain a cool environment.
The design emphasizes low noise levels even under high loads. With German engineering standards it delivers reliable power for demanding workloads without distracting noise.
Users prioritizing silence will find this PSU ideal for quiet rooms. It offers excellent efficiency and power stability while keeping sound levels near zero.
Silent Operation
Semi-passive cooling stops the fan when not needed which provides true silence during light browsing or idle usage.
Efficiency Rating
Platinum certification minimizes wasted energy which is beneficial for large systems or environments where power costs matter.
We may earn a commission when you buy through this link, at no additional cost to you.
10. NZXT C1000 Gold Core – Sleek Modern Choice
NZXT C1000 Gold Core
1000W power supply
80 Plus Gold efficient
Whisper-quiet operation
The NZXT C1000 Gold Core is a modern unit designed for efficiency and clean looks. It has a 4.6 rating and features a fluid dynamic bearing fan for long life and low noise.
Pros
- Zero RPM fan mode
- Modern modular design
- 105C capacitors
Cons
- Gold rather than Platinum
- Limited accessory bundle
We may earn a commission when you buy through this link, at no additional cost to you.
It supports ATX 3.1 with a dual color 12V-2×6 connector to ensure safe power delivery to new GPUs. The fully modular design keeps cable clutter to a minimum for tidy builds.
While it uses Gold efficiency rather than Platinum it delivers strong performance and stability. The Zero RPM mode ensures silence during lighter usage or idle states.
For those wanting a clean reliable unit with a modern look this is ideal. It delivers consistent power and low noise for everyday gaming and productivity use.
Zero RPM Mode
The fan stops completely under light loads which ensures your system is completely silent when gaming lightly or doing office work.
Modern Standards
ATX 3.1 certification ensures stability and compatibility with future hardware releases for longer usability of your PC.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best 1100W PSU
Selecting the right power supply involves balancing wattage, efficiency, and features. This guide explains key factors to consider for your specific build needs.
Wattage Requirements
Always calculate your system’s total power draw including CPU, GPU, and peripherals before choosing a PSU. A 1100W unit is ideal for high end gaming or workstation builds with multiple graphics cards or high TDP processors that need extra headroom.
Ensure the PSU offers at least 20 percent more capacity than your estimated load for stability.
Efficiency Ratings
Efficiency ratings like 80 Plus Gold or Platinum indicate how much power is wasted as heat. Higher ratings mean lower electricity bills and cooler operation. Look for Cybenetics or 80 Plus certifications to guarantee performance claims.
Platinum rated units save more energy over time compared to lower rated models.
Modular vs Non-Modular
Fully modular PSUs allow you to connect only the cables you need which improves airflow and aesthetics. Non-modular units have fixed cables that may clutter the case. For high-end builds, full modular is highly recommended for easier cable management.
Semi-modular options keep essential cables fixed but offer flexibility for others.
ATX 3.1 and PCIe 5.1 Compliance
Newer standards like ATX 3.1 support high transient power spikes from modern GPUs without voltage drops. Ensure the unit has native 12V-2×6 connectors for direct GPU power. This avoids using adapters that could fail under load.
Check for explicit ATX 3.1 certification on the product page.
Noise and Cooling
Fan noise can affect your comfort during long sessions. Look for units with large fans and fluid dynamic bearings for quiet operation. Some models offer zero RPM modes where the fan stops at low loads.
Consider your case airflow to ensure the PSU fan runs efficiently.
Build Quality and Components
High quality capacitors and internal components extend the lifespan of the PSU. Look for ratings like 105C capacitors or Japanese made internals. GaN MOSFETs can offer better efficiency and heat management in premium models.
Premium units often use better components for improved reliability.
Warranty and Support
A longer warranty period indicates manufacturer confidence in durability. Many units offer 10 year coverage which is excellent for long term peace of mind. Always check what is covered and if registration is required.
Prioritize units with strong customer support policies.
Safety Protections
Modern PSUs include over voltage, over current, and short circuit protection to safeguard components. Ensure the unit has standard OVP, OCP, and OPP protections to avoid hardware damage during power surges or spikes.
Basic protections are standard but check for additional safety layers in premium models.
How to Use and Care for Your 1100W PSU
Install the PSU in a well ventilated area of your case to ensure proper airflow. Avoid blocking vents with cables or dust buildup which can cause overheating. Use cable ties to organize connections and maintain clear paths for air to circulate.
Regularly clean dust from the PSU filters and fan using compressed air. Accumulated dust can restrict airflow and raise internal temperatures over time. Keep the surrounding area free of debris to maintain consistent cooling efficiency.
Avoid turning off the PSU with a wall switch to prevent sudden power cuts. Let the system complete shutdown cycles properly to protect hardware and maintain data integrity. Check connectors for tight fits to avoid accidental disconnection during use.
Frequently Asked Questions
Do I need a 1100W PSU for gaming?
You need a 1100W PSU if you have multiple high end graphics cards or a high power CPU. For single GPU gaming setups lower wattage units may suffice but extra capacity ensures stability and future upgrades.
What does ATX 3.1 mean for PSUs?
ATX 3.1 is a newer standard that allows power supplies to handle sudden power spikes from GPUs. It includes native 12V-2×6 connectors which are safer and more efficient for modern high performance graphics cards.
How important is efficiency rating?
Efficiency rating reduces wasted energy and heat which helps lower electricity bills and keeps components cooler. Higher rated units are generally more reliable and use better components to deliver consistent power.
Can I use an adapter for 12V-2×6?
Adapters can work but native connectors are safer and reduce failure risks. Using adapters may limit the power transfer capacity so choose a PSU with built in native connectors for best results.
Does warranty length matter?
Yes a longer warranty usually indicates better build quality and manufacturer confidence. A 10 year warranty provides peace of mind and covers potential component failures over the lifespan of your build.
What is the benefit of modular cables?
Modular cables let you use only what you need reducing clutter and improving airflow. This makes building easier and keeps the interior of the PC case cleaner for better performance.
Is refurbished PSU safe to buy?
Refurbished units can be safe if they come with a warranty and are from reputable sellers. Check the condition and testing results carefully to ensure reliability before installation in your system.
How do I check my power needs?
Use an online PSU calculator and input your CPU GPU and component details. This helps estimate total wattage so you can choose a PSU that meets your needs plus a safety buffer.
Final Thoughts on Choosing the Best 1100W PSU
We highlighted ten top rated power supplies suited for high performance systems from reliable brands like Corsair and Asus. Each offers unique strengths in efficiency noise and modern standards to match specific build requirements.
Prioritize ATX 3.1 compliance and modular features to future proof your setup. Choose efficiency ratings and cable management options that align with your case layout and power needs.
Verify current stock and pricing before purchasing as these details change frequently. Selecting the right unit ensures stable power and longevity for your high end computer system.