MSI MAG A1250GL PCIE5, Fully Modular Compact Gaming 1250W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2x6 Cable, 10 Year Warranty
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AI Verdict
A 1250W 80+ Gold ATX 3.1 and PCIe 5.1 fully modular power supply with a 10-year warranty, built for high-end gaming rigs with next-gen GPUs.
This 1250W 80+ Gold PSU with ATX 3.1 and PCIe 5.1 support is purpose-built for demanding systems running current and next-gen GPUs. Its fully modular design and compact 150mm depth simplify installation and cable management in high-performance builds.
If 1250W is overkill, look for an 80+ Gold ATX 3.1 PSU with lower wattage (e.g., 850W or 1000W) to match your GPU's power requirements.
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Pros
- 1250W output supports high-end GPUs and CPUs.
- ATX 3.1 and PCIe 5.1 readiness ensures compatibility with current and future hardware.
- Fully modular design reduces cable clutter and improves airflow.
- Compact 150mm depth allows for easier installation in most PC cases.
- Native dual-color 12V-2x6 cable delivers up to 600W to PCIe 5.1 graphics cards.
- 10-year limited warranty provides long-term reliability.
Cons
- Some users report noisy operation at high loads.
- Protection features might need tuning, according to one review.
- Mediocre transient response at 12V and 5V.
- Uses Teapo and Chengx capacitors, which some consider not top-tier compared to competitors.
Dimension Scores
It's a 1250W 80+ Gold unit, ATX 3.1 and PCIe 5.1 ready, and delivers full power at 46°C.
Features a 135mm FDB fan and is quiet at up to 600W, but can be noisy at high loads.
Offers a 10-year warranty and good build quality, though some internal capacitors are not considered top-tier.
The fully modular design with flat cables significantly reduces clutter and improves airflow.
Best For
- High-end gaming PCs with RTX 40/50 series GPUs.
- Workstations requiring stable 1250W power delivery.
- PC builds prioritizing clean cable management with fully modular design.
Not Recommended For
- Budget PC builds not requiring 1250W.
- Users sensitive to fan noise under heavy system load.
Watch Out For
- Noise levels can increase at high loads, potentially distracting users.
- Transient response at 12V and 5V is described as mediocre.
- Some components like capacitors are not considered "top-notch" by some reviewers, using brands like Teapo and Chengx.
Full Specifications
| ASIN | B0CT41F6FV |
| Brand | msi |
| Color | Black |
| Wattage | 1250 watts |
| Form Factor | ATX |
| Item Weight | 7.25 pounds |
| Manufacturer | MSI |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1250 Watts |
| Item model number | MAGA1250GLPCIE5 |
| Compatible Devices | Desktop Computers |
| Product Dimensions | 11.5 x 9.25 x 5 inches |
| Power Supply Design | Full Modular |
| Item Dimensions LxWxH | 11.5 x 9.25 x 5 inches |
| Item dimensions L x W x H | 11.5 x 9.25 x 5 inches |
What Buyers Say
Users frequently highlight this PSU's readiness for next-gen GPUs, specifically mentioning its native 12V-2x6 cable and ATX 3.1/PCIe 5.1 compatibility. The fully modular design and compact size are often praised for simplifying PC builds and improving aesthetics. While many find it quiet, some report increased fan noise when the system is under heavy load. The 10-year warranty is a recurring point of confidence for buyers.
“Dude, this thing powers my 4090 without breaking a sweat, and the cables are actually easy to manage, but sometimes the fan kicks in loud when I'm really pushing it.”
Common Praise
- Native 12V-2x6 cable directly supports RTX 40/50 series GPUs.
- Fully modular cables make routing and case airflow much cleaner.
- Compact 150mm depth fits easily into various PC cases.
- Operates silently under moderate system loads.
- 10-year warranty provides peace of mind for long-term use.
Common Complaints
- Can become noisy when the system is under high power draw.
- Transient response at 12V and 5V is not as tight as some competitors.
- Internal capacitors (Teapo and Chengx) are not always seen as premium by enthusiasts.
- Protection features could benefit from further tuning.
Ownership Tips
- The native 12V-2x6 cable is dual-color, which some users appreciate for aesthetics.
- The compact size genuinely makes a difference for cable routing in smaller cases.
- The fan's semi-passive mode keeps it silent until a certain load threshold.
- The flat cables are a real blessing for tight bends and clean builds.
Frequently Asked Questions
Is this power supply compatible with NVIDIA RTX 40 series graphics cards?
Yes, it is PCIe 5.1 ready and includes a native 12V-2x6 cable, specifically designed to support RTX 40 and upcoming RTX 50 series GPUs, delivering up to 600W.
What does "fully modular" mean for cable management?
A fully modular design means you only connect the cables your system needs, which significantly reduces clutter inside your PC case and improves airflow.
How long is the warranty on this power supply?
MSI provides a 10-year limited warranty, which covers both labor and parts, ensuring long-term reliability.
Is this power supply quiet during operation?
It features a 135mm fluid dynamic bearing fan, and many users report quiet operation, especially under moderate loads. However, some reviews mention it can get noisy at high loads.
What does 80 PLUS Gold certified mean?
80 PLUS Gold certification indicates that the power supply operates at a high efficiency, typically over 90% at various loads, which means less wasted energy as heat and lower electricity consumption.
Buying Guide
When you're picking a power supply, you're basically choosing the heart of your PC. It needs to deliver stable power to all your components, especially your hungry graphics card, without causing crashes or instability. Don't just look at wattage; efficiency (80+ rating) and future-proofing features like ATX 3.1 and PCIe 5.1 are crucial for modern gaming rigs.
Wattage (e.g., 1250W)
80 PLUS Gold Certification
ATX 3.1 & PCIe 5.1 Ready
Fully Modular
Alternatives
If this 1250W unit is too much power or too expensive, look for an 80+ Gold or Platinum rated ATX 3.1 and PCIe 5.1 ready power supply with a lower wattage (e.g., 850W or 1000W) that still offers a long warranty.
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