Msi MAG 850W Fully Modular Alternatives: 6 Similar Picks Compared
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The MSI MAG A850GLS delivers 850W of power with 80 PLUS Gold efficiency and ATX 3.1 support. You likely chose this unit for its compact 150 mm length, which simplifies cable management in smaller cases. It also includes a 10-year warranty and a 135 mm fan for quiet operation. However, you might want different specifications, such as higher wattage for future upgrades or a different form factor for a larger chassis. Some builders prefer a standard ATX size for easier installation or a higher efficiency rating for maximum power savings. Other users may need more output for extreme gaming rigs or simply want a different brand for specific aesthetic reasons.
This guide presents 6 similar picks compared to the original MSI MAG 850W Fully Modular Alternatives. We selected these options because their published specifications overlap significantly with the A850GLS. Each alternative shares key features like full modularity, PCIe 5.1 compatibility, and the 12V-2x6 connector. The list includes units ranging from 750W to 1300W, allowing you to choose based on your specific power needs. You will find options that prioritize compactness, standard sizing, or higher efficiency ratings. This approach ensures you can find a power supply that matches your exact build requirements without compromising on essential modern standards.
Our top pick: MSI MAG 850W Fully Modular Power Supply.
How alternatives compare to MSI
MSI MPG 850W Gold ATX 3.1 Power Supply
The MSI MPG A850G matches the 850W output and 80 PLUS Gold efficiency of the MAG A850GLS. It shares the ATX 3.1 standard and 12V-2x6 connector for modern GPUs. The key difference is form factor. The MPG uses a standard ATX size, measuring 5.91 inches wide and 3.39 inches high. This makes it bulkier than the compact MAG unit, which is only 9.25 inches long. You should choose this version if your case does not require a short PSU. It offers the same 10-year warranty and PCIe 5.1 readiness. It is ideal for standard builds where space is less constrained.
MSI MAG A750GL PCIE5 750W Power Supply
The MSI MAG A750GL reduces wattage to 750W while keeping the 80 PLUS Gold efficiency and ATX 3.1 support. It retains the fully modular design and 12V-2x6 connector. This unit is slightly larger than the compact MAG A850GLS, measuring 12 inches in length. You might pick this alternative if your system does not require the full 850W. It is suitable for mid-range gaming builds. The 10-year warranty remains consistent with the original. It provides reliable power for GPUs that do not demand maximum wattage. It is a cost-effective option if you do not need the extra headroom of the 850W model.
MSI MAG 850W Fully Modular ATX Power Supply
The MSI MAG A850GL offers the same 850W output and 80 PLUS Gold efficiency as the A850GLS. It also supports ATX 3.1 and includes the 12V-2x6 connector. The primary difference is physical dimensions. This model is 12 inches long and 8.75 inches wide. It is longer than the compact 11.5-inch MAG A850GLS. You should consider this version if you are building in a standard ATX case. It provides the same 10-year warranty and fully modular cables. It is a solid choice for gamers who prioritize stability and modern connector standards. It fits well in cases where the compact size is not a strict requirement.
MSI MPG 1250W Fully Modular Power Supply
The MSI MPG A1250GS significantly increases wattage to 1250W while maintaining 80 PLUS Gold efficiency. It supports ATX 3.1 and PCIe 5.1 with the 12V-2x6 connector. This unit is larger than the MAG A850GLS, measuring 9.5 inches wide and 5.4 inches high. You should choose this alternative if you plan to upgrade to high-end GPUs in the future. It is designed for enthusiasts who need long-term upgrade paths. The 10-year warranty matches the original. It is not suitable for compact cases due to its size. It offers robust power for systems that exceed 850W requirements.
MSI MAG 1000W White Modular Power Supply
The MSI MAG A1000GL increases wattage to 1000W while keeping 80 PLUS Gold efficiency and ATX 3.1 support. It includes the 12V-2x6 connector and fully modular design. The dimensions are identical to the MAG A850GLS, measuring 9.25 inches wide and 11.5 inches long. You should pick this version if your current or planned GPU requires more than 850W. It is ideal for high-wattage gaming builds. The 10-year warranty remains the same. It offers a white aesthetic option. It provides the same compact form factor while delivering extra power headroom for demanding systems.
MSI MEG Ai1300P 1300W Platinum ATX 3.1 PSU
The MSI MEG Ai1300P offers 1300W of power with 80 PLUS Platinum efficiency, which is higher than the MAG A850GLS Gold rating. It supports ATX 3.1 and PCIe 5.1. This unit has a unique form factor, measuring 6.18 inches wide and 12.9 inches high. It is not compact like the A850GLS. You should choose this alternative for extreme gaming rigs that require maximum power. It is overkill for standard builds. The 10-year warranty matches the original. It is suitable for enthusiasts who prioritize high efficiency and massive wattage. It does not fit in cases requiring short PSUs.
Quick picks
Our 7 picks
MSI MAG 850W Fully Modular Power Supply
Best for: Compact cases with modern GPUs
- Wattage
- 850W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 135 mm
View on Amazon: MSI MAG 850W Fully Modular Power Supply Affiliate link
The MSI MAG A850GLS is a fully modular 850W power supply built for modern gaming rigs. It carries 80 PLUS Gold certification for up to 90% efficiency and supports ATX 3.1 and PCIe 5.1 standards. The unit uses a 12V-2x6 connector for new GPUs and includes a 135 mm fan for quiet operation. It fits compact cases with its small footprint and is backed by a 10-year warranty.
Pros
- 80 PLUS Gold efficiency rating
- ATX 3.1 and PCIe 5.1 ready
- Fully modular cable management
- Compact 11.5-inch length
- 10-year warranty coverage
Cons
- Heavier build at 6.75 pounds
- No included display or app
- Standard ATX form factor only
Good fit if
- You need a compact PSU for a small case
- You are building with a PCIe 5.1 graphics card
- You want long-term warranty protection
Skip if
- You require a 1200W or higher power output
- You need a white color option
- You prefer a 120 mm fan size
Verdict: MSI MAG A850GLS 850W Gold PSU is a solid choice for gamers who need PCIe 5.1 support in a compact, fully modular package. It suits builders prioritizing efficiency and warranty length over raw wattage.
MSI MPG 850W Gold ATX 3.1 Power Supply
Best for: Standard ATX gaming builds needing PCIe 5.1
- Wattage
- 850W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MPG 850W Gold ATX 3.1 Power Supply Affiliate link
The MSI MPG A850G is a fully modular 850W power supply built for gaming systems. It carries an 80 PLUS Gold efficiency rating and supports ATX 3.1 and PCIe 5.1 standards. The unit includes a native 12V-2x6 cable for modern GPUs. Japanese 105°C capacitors help ensure stability. It comes with a 10-year warranty for long-term reliability.
Pros
- 80 PLUS Gold efficiency rating
- ATX 3.1 and PCIe 5.1 support
- Native 12V-2x6 cable included
- 10-year limited warranty
- Fully modular cable design
Cons
- Heavier than compact alternatives at 7.15 pounds
- Standard ATX form factor limits fit in small cases
- No software control or monitoring features listed
Good fit if
- You need native PCIe 5.1 support for new GPUs
- You want high efficiency for lower power bills
- You prefer a fully modular cable setup
Skip if
- You are building in a very small form factor case
- You require software monitoring or control
- You need more than 850W of power
Verdict: MSI MPG A850G 850W Gold PSU is a solid choice for gamers who need reliable power for high-end graphics cards without the bulk of larger wattage units. It fits well in standard ATX cases where cable management is a priority.
MSI MAG A750GL PCIE5 750W Power Supply
Best for: mid-range gaming builds needing PCIe 5.1
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MAG A750GL PCIE5 750W Power Supply Affiliate link
This is a 750W fully modular power supply built for gaming PCs. It carries the 80 PLUS Gold efficiency rating and supports ATX 3.1 and PCIe 5.1 standards. The unit measures 12 by 9 by 5 inches and weighs 6.61 pounds. It includes a 12V-2x6 connector for modern GPUs. You should consider this unit if you need a reliable, compact solution for a mid-range build.
Pros
- 80 PLUS Gold efficiency rating
- Fully modular cable design
- ATX 3.1 and PCIe 5.1 support
- 10-year limited warranty
Cons
- Lower 750W output compared to 850W alternatives
- Heavier at 6.61 pounds than lighter competitors
- Standard black color option only
Good fit if
- You are building a mid-range gaming PC
- You need PCIe 5.1 compatibility for newer graphics cards
- You prefer fully modular cables for clean builds
Skip if
- You require more than 750W of power
- You are looking for a white color scheme
- You need ultra-compact dimensions under 10 inches
Verdict: MSI MAG A750GL 750W ATX 3.1 is a solid choice for gamers who need reliable power and modern connector support without exceeding 750W. It fits well into standard ATX cases where cable management is a priority.
MSI MAG 850W Fully Modular ATX Power Supply
Best for: Gaming builds needing 850W reliability
- Wattage
- 850W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MAG 850W Fully Modular ATX Power Supply Affiliate link
The MSI MAG A850GL is a fully modular 850W power supply designed for gaming builds. It carries an 80+ Gold efficiency rating and supports ATX 3.1 and PCIe 5.1 standards. The unit features a 12V-2x6 connector for modern graphics cards. It includes a 10-year warranty. This model suits users needing reliable power for high-end components without excessive wattage.
Pros
- 80+ Gold efficiency rating
- 10-year warranty coverage
- ATX 3.1 and PCIe 5.1 support
- Fully modular cable design
Cons
- 850W output may limit extreme multi-GPU setups
- No wireless monitoring or app control listed
- Standard ATX form factor limits extreme small-form-factor builds
Good fit if
- You need a reliable 850W source for mid-to-high-end gaming PCs
- You want a 10-year warranty for long-term peace of mind
- You are building with ATX 3.1 compatible components
Skip if
- You require more than 850W for professional workstation loads
- You need a non-modular unit for maximum simplicity
- You are building in a case that requires SFX form factors
Verdict: MSI MAG A850GL 850W Fully Modular offers solid efficiency and a long warranty for gamers. It fits users who prioritize stability and modern connector standards over higher wattage tiers.
MSI MPG 1250W Fully Modular Power Supply
Best for: high-end gaming upgrades
- Wattage
- 1250W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MPG 1250W Fully Modular Power Supply Affiliate link
This 1250W fully modular unit targets high-end gaming builds. It carries an 80 Plus Gold efficiency rating and supports ATX 3.1 standards. You get two native 12V-2x6 connectors for modern GPUs. The build uses server-grade 105°C capacitors for stability. It measures 11.5 inches long, which may limit fit in smaller cases. This power supply suits users needing significant headroom for future upgrades.
Pros
- 1250W output capacity
- 80 Plus Gold efficiency
- Two native 12V-2x6 connectors
- 10-year warranty coverage
Cons
- 11.5-inch length exceeds compact standards
- Higher wattage than the 850W baseline
- Black color only available
Good fit if
- You need extra power for future GPU upgrades
- You want gold efficiency for lower heat
- You have a large case with 11.5-inch clearance
Skip if
- You are building a compact ITX system
- You only need 850W for your current rig
- You prefer white components for a themed build
Verdict: MSI MPG A1250GS 1250W Gold PSU offers robust power for enthusiasts. It fits users prioritizing long-term upgrade paths over compact form factors.
MSI MAG 1000W White Modular Power Supply
Best for: high-wattage gaming builds needing white aesthetics
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MAG 1000W White Modular Power Supply Affiliate link
This is a 1000W fully modular power supply with 80 PLUS Gold efficiency. It supports ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector. The white unit measures 11.5 by 9.25 by 5.08 inches. It suits gamers needing high wattage and modern connector support for RTX 40 series cards.
Pros
- 1000W output capacity
- 80 PLUS Gold efficiency rating
- ATX 3.1 and PCIe 5.1 support
- Native 12V-2x6 connector
- 10-year warranty
Cons
- White color may not match black builds
- 11.5-inch length is bulkier than compact alternatives
- 1000W exceeds the 850W target of this guide
Good fit if
- You need more than 850W for high-end GPUs
- You prefer a white aesthetic for your case
- You want ATX 3.1 and PCIe 5.1 readiness
Skip if
- You strictly need an 850W unit
- You require a compact form factor to fit small cases
- You prefer a black color scheme
Verdict: MSI MAG A1000GL 1000W Gold ATX 3.1 is a high-wattage option for users upgrading beyond 850W. It delivers modern connectivity and efficiency for demanding gaming rigs.
MSI MEG Ai1300P 1300W Platinum ATX 3.1 PSU
Best for: Extreme gaming builds needing 1300W
- Wattage
- 1300W
- Efficiency Rating
- 80 Plus Platinum
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1, ATX 3.0
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MEG Ai1300P 1300W Platinum ATX 3.1 PSU Affiliate link
This 1300W power supply features 80 PLUS Platinum efficiency and ATX 3.1 support. It includes native 12V-2x6 connectors for RTX 40 series cards. The unit uses 100% Japanese 105°C capacitors for stability. You get a 10-year warranty. It measures 6.18 by 8.27 by 12.9 inches. This model suits users needing high wattage and modern connectivity.
Pros
- 1300W output capacity
- 80 PLUS Platinum efficiency rating
- Native 12V-2x6 PCIe connector
- ATX 3.1 and PCIe 5.1 support
- 10-year warranty coverage
Cons
- 1300W wattage exceeds typical 850W needs
- Larger physical dimensions than compact 850W units
- No software monitoring or control features listed
Good fit if
- You need 1300W for extreme gaming builds
- You want native 12V-2x6 support
- You prefer Platinum efficiency ratings
Skip if
- You need an 850W unit
- You require a compact form factor
- You want software control features
Verdict: MSI MEG Ai1300P 1300W Platinum PSU is a high-wattage option for users building extreme gaming rigs. It offers modern connectivity and high efficiency but is overkill for standard 850W alternatives.
Specifications side by side
| Spec | MSI MAG 850W Fully Modular Power Supply | MSI MPG 850W Gold ATX 3.1 Power Supply | MSI MAG A750GL PCIE5 750W Power Supply | MSI MAG 850W Fully Modular ATX Power Supply | MSI MPG 1250W Fully Modular Power Supply | MSI MAG 1000W White Modular Power Supply | MSI MEG Ai1300P 1300W Platinum ATX 3.1 PSU |
|---|---|---|---|---|---|---|---|
| Wattage | 850W | 850W | 750W | 850W | 1250W | 1000W | 1300W |
| Efficiency Rating | 80 PLUS Gold | 80+ Gold | 80 PLUS Gold | 80+ Gold | 80+ Gold | 80 PLUS Gold | 80 Plus Platinum |
| Modularity | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
| ATX Version | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1, ATX 3.0 |
| PCIe Connector Type | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 | 12V-2x6 |
| Fan Size | 135 mm | not stated | not stated | not stated | not stated | not stated | not stated |
| Warranty | 10 Year | 10 Year | 10 Year | 10 Year | 10 Year | 10 Year | 10 Year |
| Form Factor | Compact | Compact | Compact | Compact | ATX | Compact | ATX |
| PCIe Version | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 |
| Recommended Use | Gaming | Gaming | Gaming | Gaming | Gaming | Gaming | Gaming |
| Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector | 12V-2x6 Connector |
| Size | 850 W | 850W | 750W (PCIE 5) | 850W (PCIE 5) | 1250W | 3.4" x 5.9" x 5.9" | 1300W |
| Dimensions | 11.5 × 9.25 × 5.08 inches | 5.91 × 5.91 × 3.39 inches | 12 × 9 × 5 inches | 12 × 8.75 × 4.92 inches | 11.5 × 9.5 × 5.4 inches | 11.5 × 9.25 × 5.08 inches | 8.27 × 6.18 × 12.9 inches |
| Weight | 6.75 pounds | 7.15 pounds | 6.61 pounds | not stated | not stated | 7.54 pounds | 3.31 pounds |
| Model | MAG A850GLS PCIE5 | MPG A850G PCIE 5 | 306-7ZP8B11-CE0 | not stated | MPG A1250GS PCIE5 | MAG A1000GL PCIE5 White | 306-7ZP4A11-CE0 |
| Color | not stated | not stated | Black | not stated | Black | White | not stated |
When you need a matching motherboard, examine msi mag b650 tomahawk wifi alternatives to evaluate VRM and chipset specifications.
Frequently asked questions
Does the MSI MAG 850W support the latest GPU connectors?
Yes, all listed alternatives feature the 12V-2x6 connector. This native support handles PCIe 5.1 power delivery directly. You do not need bulky adapters for modern graphics cards. The design ensures stable power flow for high-end gaming rigs without extra hardware.
Are all these power supplies fully modular?
Yes, every option in this list is fully modular. You can connect only the cables you need for your build. This approach reduces clutter inside your case. It also improves airflow by removing unused wires from your chassis.
Which alternative offers the highest wattage?
The MSI MEG Ai1300P provides 1300W of power. It is the highest output option available in this comparison. This unit suits extreme gaming builds that require significant headroom. It maintains 80 PLUS Platinum efficiency at this higher tier.
Is there a lower wattage option available?
The MSI MAG A750GL offers 750W of output. It is the lowest wattage choice in this specific list. This unit fits mid-range gaming builds effectively. It still includes full modularity and the modern 12V-2x6 connector for current GPUs.
Do these units support ATX 3.1 standards?
Yes, all seven products listed adhere to the ATX 3.1 specification. This standard ensures compatibility with the latest motherboard and power requirements. You get consistent performance across all models. The specification guarantees proper voltage regulation for modern components.
Which model is best for compact cases?
The MSI MAG A850GLS is ideal for compact builds. It features a width of 9.25 inches and a length of 11.5 inches. This smaller footprint fits easily into tight chassis. You get full 850W power without requiring a large case interior.
Does the MSI MPG 850W differ from the MAG version?
The MPG A850G shares the 850W output and Gold efficiency. It also uses the ATX 3.1 standard. The main difference is physical dimensions. The MPG model is narrower at 5.91 inches wide. This makes it suitable for standard ATX cases where cable management is a priority.