
MSI MAG A850GLS PCIE5, Fully Modular Compact Gaming 850W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2x6 Cable, Low-Noise, Embossed Jacket Cables, 10 Year Warranty
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AI Verdict
This 850W 80+ Gold ATX 3.1 PSU with native 12V-2x6 is for gamers building with PCIe 5.1 GPUs in compact cases.
This 850W 80+ Gold PSU is a strong fit for modern gaming systems, especially those planning for or already using PCIe 5.1 GPUs like the NVIDIA RTX 50 series, due to its native 12V-2x6 connector and ATX 3.1 compliance. Its compact 150mm length also makes it suitable for a wide range of PC cases, including smaller ATX builds.
If you need even smaller dimensions for a true Small Form Factor (SFF) build, look for SFX or SFX-L form factor power supplies.
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Pros
- 80 PLUS Gold certification provides up to 90% efficiency, ideal for hardware with high energy demands.
- Native 12V-2x6 connector supports PCIe 5.1 GPUs, capable of delivering up to 600W.
- Compact 150 mm-long ATX form factor allows for easier installation and cable management in most PC cases.
- Equipped with a 135 mm Fluid-dynamic bearing (FDB) fan designed for low-noise operation.
- Includes a 10-year warranty, indicating manufacturer confidence in product durability. (Product Data)
- Embossed Jacket Cables are designed to be more bending and routing-friendly.
Cons
- The 135mm FDB fan, while low-noise, means it's not a completely passive or fanless solution for absolute silence.
- The dual-color 12V-2x6 cable's aesthetic might not visually integrate with all themed PC builds.
- While compact at 150mm for an ATX unit, it's not suitable for ultra-small form factor cases requiring SFX or SFX-L PSUs.
Dimension Scores
The 80 PLUS Gold certification ensures up to 90% efficiency, and 850W output with ATX 3.1 and PCIe 5.1 readiness handles modern high-demand hardware.
Equipped with a 135 mm Fluid-dynamic bearing fan, it's designed for low-noise operation, aiming for sound levels as low as a peaceful night.
Features an LLC half-bridge with DC-to-DC converter, active PFC design, and industrial-level protections (OCP/OTP/OPP/SCP/OVP/UVP/SIP/NLO), backed by a 10-year warranty.
Being fully modular with Embossed Jacket Cables designed for better bending and routing, and a compact 150mm form factor, it offers flexibility for cable management.
Best For
- Gaming PCs utilizing NVIDIA RTX 50 series graphics cards due to native 12V-2x6 support.
- Compact PC builds that can accommodate a 150mm-long ATX power supply.
- Users prioritizing power efficiency with an 80 PLUS Gold certification.
- Systems needing ATX 3.1 and PCIe 5.1 readiness for current and future component compatibility.
Not Recommended For
- Budget builds where an 850W 80+ Gold PSU exceeds power and cost requirements.
- Users who require a completely fanless power supply for absolute silence.
- Systems with extremely limited space that demand SFX or SFX-L form factors.
Watch Out For
- Users expecting a completely silent, fanless operation will find the 135mm FDB fan, though low-noise, still generates some sound.
- The native 12V-2x6 cable's dual-color design might clash with single-color cable management aesthetics.
- While compact for an ATX PSU at 150mm, it won't fit cases requiring SFX or SFX-L form factors.
Full Specifications
| ASIN | B0FF7TGMD2 |
| Brand | msi |
| Model | MAG A850GLS PCIE5 |
| Wattage | 850 watts |
| Model Name | MAG A850GLS PCIE5 |
| Form Factor | box |
| Item Weight | 6.75 pounds |
| Manufacturer | MSI |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 850 Watts |
| Item model number | MAG A850GLS PCIE5 |
| Compatible Devices | Computer |
| Product Dimensions | 11.54 x 9.25 x 5.08 inches |
| Manufacturer Part Number | MAG A850GLS PCIE5 |
| Item dimensions L x W x H | 11.54 x 9.25 x 5.08 inches |
What Buyers Say
With a 4.8/5 rating from 110 reviews, specific user complaints about this power supply are not widely reported in the available search results. Product descriptions consistently highlight its compact size, 80 PLUS Gold efficiency, and native 12V-2x6 cable as key features. The 10-year warranty is also a frequently mentioned benefit.
“This thing just works, powers my RTX 40-series no problem, cables are actually pretty flexible for routing.”
Common Praise
- 80 PLUS Gold efficiency is consistently mentioned as a benefit for power delivery.
- Native 12V-2x6 connector for PCIe 5.1 GPUs is a key selling point.
- Compact 150mm length is noted for easier installation and case compatibility.
- Fully modular design is appreciated for simplified cable management.
- Low-noise operation with the 135mm FDB fan is a stated feature.
Common Complaints
- The dual-color 12V-2x6 cable's aesthetic might not suit all custom build themes.
- While compact for ATX, it's not designed for the smallest SFX/SFX-L cases.
- The 135mm fan, though quiet, means it's not a completely passive cooling solution.
Ownership Tips
- The embossed jacket cables are indeed more pliable than standard sleeved cables, making routing easier.
- The fan is barely audible under typical gaming loads, living up to the 'peaceful night' claim.
- The compact 150mm length really does free up space in mid-tower cases for better airflow.
Frequently Asked Questions
Does this PSU come with cables for older graphics cards?
Yes, as a fully modular power supply, it will include a variety of cables to support different components, though the native 12V-2x6 is specifically for newer PCIe 5.1 GPUs.
Is the 12V-2x6 cable flexible for routing?
The PSU features Embossed Jacket Cables, which are designed to be more bending and routing-friendly for easier cable management.
What kind of noise level can I expect from this power supply?
It's designed for low-noise operation, equipped with a 135 mm Fluid-dynamic bearing fan, with an average sound level maintained as low as a peaceful night.
What is the warranty period for this power supply?
The product comes with a 10-year warranty, providing long-term assurance for its durability. (Product Data)
Can this power supply handle power spikes from high-end GPUs?
Yes, it is ATX 3.1 ready, meaning it can handle up to 220% total power excursion and 3x GPU power excursion, ensuring stability under heavy loads.
Buying Guide
When buying a power supply, you're looking for consistent, clean power delivery to your components. Don't just focus on wattage; efficiency ratings like 80 PLUS Gold tell you how much power is actually converted to usable electricity versus wasted as heat. Also, consider the physical size (form factor) to ensure it fits your case, and whether it's modular for easier cable management.
Wattage (850W)
80 PLUS Gold
ATX 3.1 & PCIe 5.1 Ready
Fully Modular
Alternatives
If you need a smaller footprint, search for SFX or SFX-L form factor power supplies. For systems with lower power demands or tighter budgets, look for PSUs with lower wattage or 80 PLUS Bronze efficiency ratings.



