Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
5.0Editor score
High efficiency platinum rating
Modular cable management
Renewed condition savings
In this guide
Choosing the right power supply is critical for any high-performance computer build. A robust unit ensures stable voltage delivery and protects your components from spikes. We focus on models that offer efficiency and reliability for modern gaming rigs.
We evaluated ten leading power supply units based on efficiency ratings, modularity, and connector types. Our analysis considers ATX 3.1 compliance and native cable support. This list covers a range of options to fit different build requirements.
Each pick highlights specific strengths like noise levels or warranty coverage. You will find detailed breakdowns of features and performance. Keep in mind that prices and availability can change over time.
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
Cybenetics Gold efficiency
Fully modular cabling
Asus ROG Strix 1000W Platinum White PSU
4.7Editor score
GaN MOSFET technology
Intelligent voltage stabilizer
Dual ball fan bearings
Top 10 Best 1100W PSU in 2026 Compared
The following table provides a side-by-side comparison of all ten power supply units. It highlights key specifications such as efficiency, modularity, and connector support to help you identify the best fit for your system.
ProductsSpecificationsEditor scorePrice
Best Budget
Dell 1100W EPP 80+ Platinum PSU (PR21C)
80 Plus Platinum rated
1100 Watt output
Server grade build
Standard non modular
Editor's Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
80 Plus Platinum rated
1100 Watt output
Renewed condition unit
Modular cable design
5.0Editor score
Best Premium
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply
ATX 3.1 certified
1000 Watt output
120mm rifle fan
Fully modular design
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
Native 12V-2×6
Cybenetics Gold rated
Low noise operation
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
80 Plus Gold rated
1050 Watt output
Low profile cables
Ten year warranty
4.5Editor score
Asus ROG Strix 1000W Platinum White PSU
80 Plus Platinum rated
1000 Watt output
GaN MOSFET tech
GPU first voltage
4.7Editor score
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply
Cybenetics Gold rated
1000 Watt output
ATX 3.1 compliant
Native connector support
4.5Editor score
MSI MPG A1000GS PCIE5 II, Fully Modular Gaming 1000W Power Supply
80 Plus Gold rated
1000 Watt output
Dual 12V cables
Server grade caps
4.3Editor score
be quiet! Power Zone 2 1000W, ATX 3.1, PCIe 5.1, 80+ Platinum Power Supply
80 Plus Platinum rated
1000 Watt output
Semi passive cooling
Large 140mm fan
4.6Editor score
NZXT C1000 Gold Core – 1000W ATX 3.1 Power Supply
80 Plus Gold rated
1000 Watt output
Zero RPM mode
Dual color connector
4.6Editor score
1. Dell 1100W EPP 80+ Platinum PSU – Best Server Grade Option
Dell 1100W EPP 80+ Platinum PSU (PR21C)
1100W continuous power
80 Plus Platinum efficiency
Standard server PSU form
Non modular cable setup
This Dell unit is a powerful option known for its high efficiency and robust build quality. While originally designed for server environments like the PowerEdge R730, it offers substantial wattage for demanding workstations or gaming systems that need reliable power.
Pros
- High power capacity
- Platinum efficiency rating
- Proven server reliability
- Affordable price point
Cons
- Non modular cables
- Server form factor limits
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The 80 Plus Platinum certification ensures that you get high efficiency with minimal heat waste. This is critical for maintaining stable performance under load. The 1100W output provides ample headroom for multiple GPUs or high power components.
However, the non modular cabling can make installation tricky in compact cases. You will need to manage excess cables carefully. Additionally, the server form factor may require specific mounting points or adapters for standard PC cases.
This PSU is ideal for users who prioritize raw power and efficiency over ease of cable management. If you are building a workstation on a budget and can accommodate the cables, this unit delivers excellent value and performance.
High Efficiency Performance
The Platinum rating reduces energy waste and helps keep system temperatures lower during extended use.
Robust Build Quality
Designed for server duty cycles, this unit is built to handle continuous heavy loads reliably.
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2. Dell 1100W EPP (Renewed) – Best Budget High Wattage Choice
Dell 1100W EPP 80+ Platinum PSU (CMPGM) (Renewed)
1100W continuous power
80 Plus Platinum efficiency
Fully modular cables
Renewed condition unit
This renewed Dell power supply offers an impressive combination of high wattage and affordability. It retains the 80 Plus Platinum efficiency of its predecessor but adds the convenience of modular cabling which simplifies build installation significantly.
Pros
- Extremely affordable price
- Modular cable design
- High efficiency rating
- Platinum performance level
Cons
- Renewed warranty terms
- Server origin limitations
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The modular cables allow you to connect only what you need, reducing clutter inside the case. This is a huge plus for airflow and aesthetics. The 1100W output ensures you have plenty of power for even the most demanding systems.
As a renewed product, it may come with limited warranty coverage compared to new units. However, the 5.0 rating suggests strong customer satisfaction. It is a great choice for budget conscious builders who need high power.
If you want a high efficiency PSU without breaking the bank, this renewed unit is a top contender. Just ensure you check the return policy and warranty details before purchasing to match your expectations.
Modular Convenience
Fully modular cabling helps keep your case clean and improves airflow for better cooling performance.
Cost Effective Power
Buying renewed can save significant money while still providing certified efficiency and performance.
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3. CORSAIR RM1000e – Best Future Ready Standard Option
CORSAIR RM1000e (2025) ATX 3.1 PCIe 5.1 Ready 1000W Power Supply
1000W output power
ATX 3.1 compliant
120mm rifle bearing fan
Fully modular design
The CORSAIR RM1000e is designed to meet the latest ATX 3.1 standards. It provides a stable power delivery platform for modern components. The 1000W output is sufficient for most high end gaming setups without excessive overkill.
Pros
- ATX 3.1 support
- Fully modular cables
- Low noise operation
- Reliable brand
Cons
- Not highest efficiency tier
- Slightly higher price
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It features a fully modular design which allows for clean cable management. The rifle bearing fan is tuned to stay quiet even under load. This makes it a good choice for users who want a balance of performance and silence.
While it lacks the highest efficiency certification in its class, it still offers reliable performance. The transient handling capabilities ensure stability during GPU spikes. It is a solid choice for a modern mid to high range build.
For builders looking for a trustworthy brand with the latest standards, this unit is a strong pick. It delivers the necessary power for next gen GPUs while keeping noise and heat in check.
ATX 3.1 Compliance
Compliance with the new standard ensures compatibility with future GPUs and better power handling.
Quiet Operation
The fan curve is optimized to reduce noise during low and moderate load scenarios.
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4. CORSAIR RM1000x – Best Overall for Modern Builds
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply
1000W output power
Native 12V-2×6 connector
Cybenetics Gold efficiency
Embossed cables included
The RM1000x stands out as one of the most capable power supplies on the market. It includes a native 12V-2×6 connector which is essential for the latest GPUs. This eliminates the need for awkward adapters and improves safety.
Pros
- Native 12V-2×6
- Gold efficiency rating
- Flexible embossed cables
- Quiet fan profile
Cons
- Higher price than base
- May need adapter for some
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The Cybenetics Gold certification ensures high efficiency. The fully modular design with embossed cables makes installation straightforward. The cables are flexible and look great inside the case. This is a premium choice for serious builders.
While it is priced higher than some alternatives, the added features justify the cost. The stability and safety features provide peace of mind. You are investing in a unit that will last for years of high performance use.
For those building a high end gaming PC or workstation, this is our top recommendation. It combines cutting edge connectivity with reliable performance and a clean aesthetic.
Native Connector Support
The native cable ensures a secure connection and reduces risk of loose contacts on new GPUs.
Premium Cable Design
Embossed sleeves offer better flexibility and durability compared to standard flat ribbon cables.
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5. Thermaltake Toughpower GF A3 – Best Value for ATX 3.1
Thermaltake Toughpower GF A3 1050W
1050W output power
ATX 3.1 compliant
Gold efficiency certified
Ten year warranty
Thermaltake offers a solid contender with the Toughpower GF A3. It is fully compatible with ATX 3.1 standards and includes connectors designed for modern GPUs. The 1050W output provides a bit more headroom than standard 1000W units.
Pros
- Strong 12V rail
- Low profile cables
- Long warranty period
- Good price point
Cons
- Slightly lower efficiency
- Brand perception varies
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The fully modular cables are low profile, which helps with cable management. The 10 year warranty adds confidence to the purchase. It is a good balance of features and price for those needing reliable power.
The efficiency is rated at Gold, which is standard for this tier. It performs well in terms of stability and protection. For users who want a bit more wattage than the standard 1000W, this is a great choice.
If you are looking for a reliable PSU that supports the latest standards without the premium price tag, consider this model. It delivers consistent power and protection for high performance systems.
Warranty Coverage
A long warranty period reflects the manufacturer's confidence in the unit's reliability and lifespan.
Connectivity Options
Includes necessary connectors for next gen GPUs ensuring you can upgrade without buying a new PSU.
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6. Asus ROG Strix – Best Premium for Aesthetics
Asus ROG Strix 1000W Platinum White PSU
1000W output power
80 Plus Platinum efficiency
GaN MOSFET tech
Voltage stabilizer feature
This ROG Strix unit is a premium option designed for users who want top tier performance. It features GaN MOSFETs which offer higher efficiency and cooler operation. The white design is perfect for matching specific build themes.
Pros
- GaN efficiency tech
- Intelligent voltage stabilizer
- Premium build materials
- Aesthetic white design
Cons
- Higher price point
- White color limits
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The intelligent voltage stabilizer ensures that your GPU gets clean power. This can improve performance stability during demanding tasks. The dual ball fan bearings are designed for longevity and low noise operation.
The build quality is exceptional. It includes premium components that justify the higher cost. The white color option allows for unique and clean builds. It is a great choice for enthusiasts.
If you are building a custom PC with a focus on aesthetics and peak performance, this unit is ideal. It offers all the necessary features with the added benefit of a unique look.
GaN Technology
Gallium Nitride components improve efficiency and reduce heat generation significantly.
Voltage Stabilization
Patented stabilizer delivers smoother power to your graphics card for consistent frame rates.
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7. CORSAIR RM1000x – Best Reliable All Rounder
CORSAIR RM1000x ATX 3.1 PCIe 5.1 1000W Power Supply
1000W output power
Cybenetics Gold rated
Native 12V-2×6
Low noise operation
The RM1000x is another strong entry from CORSAIR. It is built to support the latest PCIe standards with a native connector. The design focuses on delivering power efficiently and quietly.
Pros
- Reliable brand support
- Modern power standards
- Efficient operation
- Solid warranty
Cons
- Standard color options
- Premium price
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The Gold efficiency rating helps keep energy costs down. The modular cabling allows for a clean build. It is a reliable choice for those who do not want to experiment with lesser known brands.
While it may not have the exotic features of the Platinum models, it performs consistently. It is a safe pick for a wide range of system configurations. The quality control is generally excellent.
If you want a dependable unit that meets all modern requirements, this is a great choice. It will handle your current GPU and leave room for future upgrades.
Connector Support
Native cables ensure direct connection to your GPU for optimal power delivery and safety.
Noise Control
Fan speed is managed to ensure silence during low load usage.
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8. MSI MPG A1000GS – Best for Component Protection
MSI MPG A1000GS PCIE5 II
1000W output power
Dual 12V-2×6 cables
Server grade capacitors
Full protection suite
MSI has designed this unit with gaming in mind. It includes dual 12V-2×6 cables which is rare. This is useful for dual GPU setups or GPUs that require high power. The components are rated for high temperatures.
Pros
- Dual native cables
- High quality capacitors
- Long warranty period
- Comprehensive protections
Cons
- Slightly lower rating
- Average noise levels
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The 10 year warranty shows a commitment to quality. It includes a full suite of protection features. This helps prevent damage to your components in case of power issues. The build is sturdy.
The flexibility of the cables is good for routing. It offers a balanced set of features for the price. While the rating is slightly lower than premium units, it is still solid for most systems.
For those who need extra connector options and peace of mind on protection, this is a good choice. It supports the latest standards without compromising on safety.
Dual Cable Option
Having two native cables provides flexibility for complex power needs.
Protection Features
Multiple safety mechanisms protect against overloads and short circuits.
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9. be quiet! Power Zone 2 – Best for Silent Builds
be quiet! Power Zone 2 1000W
1000W output power
Platinum efficiency rated
Semi passive cooling
Large 140mm fan
This PSU is built for users who prioritize silence. The 140mm fan is designed to move air quietly. The zero RPM mode ensures it does not turn on until needed. This makes it ideal for quiet home setups.
Pros
- Near silent operation
- Platinum efficiency
- Zero RPM mode
- Quality German design
Cons
- Higher price
- Large fan requires space
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The efficiency rating is Platinum which is excellent. It saves energy and generates less heat. The 12V-2×6 connector ensures compatibility with new hardware. The build quality reflects German standards.
The price is higher than average but the silence is worth it for many. The design is clean and functional. It is a top choice for those who hate fan noise.
If you want a PC that is barely audible, this is the PSU to choose. It delivers power efficiently and quietly without sacrificing performance or safety.
Zero RPM Mode
The fan stops completely during low loads to ensure absolute silence.
Platinum Efficiency
High efficiency reduces heat output and power consumption.
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10. NZXT C1000 Gold Core – Best for Compact Builds
NZXT C1000 Gold Core
1000W output power
Gold efficiency certified
Fluid dynamic bearing
7 year warranty
NZXT delivers a sleek and powerful PSU with this model. It is designed to fit well in modern cases. The fluid dynamic bearing fan is durable and quiet. It features a zero RPM mode for silent low load use.
Pros
- Zero RPM mode
- Quiet operation
- Sleek design
- Reliable brand
Cons
- Gold not Platinum
- Price for wattage
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The ATX 3.1 certification ensures future compatibility. The 12V-2×6 connector is included for direct GPU power. The design is minimalist and fits any build aesthetic. It is a solid choice for those who value design.
The efficiency is Gold which is standard. It provides good value for the features offered. The protection features are comprehensive and safe. It is a reliable choice for gaming PCs.
If you want a balance of style and performance, this unit is a strong candidate. It provides the necessary power for high end systems while looking great.
Design and Style
The compact design helps it fit into a variety of case form factors.
Zero RPM Mode
This feature ensures the PSU remains silent when your system is idle.
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Buying Guide – How to Choose the Best 1100W PSU
Selecting the right PSU involves evaluating several factors to ensure it matches your system needs. We have compiled key considerations to help you make an informed decision.
Wattage Requirements
While 1100W is powerful, you should calculate your system needs first. High end GPUs may not always need this much power but headroom helps with transients. Always choose a unit that exceeds your estimated max draw by at least 20 percent.
Selecting a PSU with adequate wattage ensures stability and longevity.
Efficiency Ratings
Look for 80 Plus Platinum or Gold ratings. Higher efficiency means less heat and lower electricity costs. Platinum rated units often use better components internally. This translates to a quieter and cooler operation.
Prioritize efficiency to reduce long term costs and heat.
Modular Cabling
Fully modular PSUs allow you to connect only the cables you need. This reduces clutter and improves airflow inside the case. Non modular units can make cable management difficult in compact builds. Modularity is a major convenience factor.
Modular cabling is highly recommended for clean builds.
ATX 3.1 and PCIe 5.1
Newer standards like ATX 3.1 support transient spikes better. Look for native 12V-2×6 connectors to avoid adapters. This ensures your PSU can handle next generation GPUs safely. It is a key factor for future proofing.
Ensure your PSU supports the latest connector standards.
Noise and Cooling
Fan type and size impact noise levels. Larger fans like 140mm can move air more quietly. Zero RPM modes stop the fan when idle. This is vital for users who want a silent workspace.
Check fan specifications for noise ratings if silence is important.
Brand and Warranty
Choose a reputable brand with a strong track record. Longer warranties indicate higher build quality. Units with 10 year warranties are generally more robust. This protects your investment in the long run.
Always check the warranty length before purchasing.
Safety Protections
Ensure the unit includes protections like OCP, OVP, and SCP. These prevent damage from power surges or faults. High quality capacitors are essential for stable output. Safety features protect your expensive components.
Verify that safety protections are included in the unit.
Form Factor
Most high wattage PSUs are standard ATX size. Ensure your case can accommodate the dimensions. Some server units may have different footprints. Always check dimensions before purchasing.
Measure your case to confirm fit before buying.
How to Use and Care for Your 1100W PSU
Start by ensuring all power is disconnected before installation. Use the modular cables that are necessary for your components. Connect the main 24 pin and CPU cables securely. Verify all connections are tight before powering on.
Maintain good airflow around your case to prevent heat buildup. Clean dust from the PSU filters regularly. Do not cover the vents on the case or PSU. Overheating can reduce the lifespan of the unit.
If you hear unusual noises or smell burning, shut down immediately. Use surge protectors to guard against spikes. Proper maintenance ensures your unit lasts for many years.
Frequently Asked Questions
Is 1100W enough for two GPUs?
Yes, 1100W is generally sufficient for two modern GPUs depending on their exact models. Ensure you have enough PCIe power connectors and monitor your power draw. If your cards are top end models, check their specific recommendations.
What is the benefit of ATX 3.1?
ATX 3.1 provides better handling of transient power spikes. It ensures your PSU can support the latest GPUs with native connectors. This reduces the need for adapters and improves overall system stability.
Do I need a fully modular PSU?
Fully modular PSUs offer easier cable management and better airflow. While not strictly necessary, they are recommended for clean builds. Non modular units can lead to cluttered cases.
What are 12V-2×6 connectors?
These are new power connectors designed for modern GPUs. They replace the older adapters and provide a direct and safer connection. Most high end units now include these natively.
How long should a PSU last?
A quality PSU with proper care can last five to ten years or more. Warranty lengths often reflect expected lifespan. Replacing the unit after the warranty period is common practice.
Can I use an old PSU for a new build?
Old PSUs may not support new connectors or efficiency standards. If your system has high power requirements, a new unit is recommended. Check compatibility before attempting to reuse older hardware.
Final Thoughts on Choosing the Best 1100W PSU
We have reviewed ten powerful units that deliver reliability and performance. Our top picks include options for every budget and preference. Whether you want silence or maximum efficiency there is a choice for you.
Prioritize ATX 3.1 compliance and modularity for the best experience. Ensure you select a unit that matches your system's power needs. A high quality PSU is the foundation of a stable build.
Prices and availability change frequently so check current listings before purchasing. We hope this guide helps you find the right power supply for your next project.