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MSI MPG PCIE5 A1250GS PCIE5

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MSI MPG PCIE5 A1250GS PCIE5
2025MPGsemi-passive cooling80+ Gold10 year warranty
850 W1000 W1250 W
Main
Power1250 W
Form factorATX
Specs
PFCactive
Efficiency90 %
Cooling systemsemi-passive
Fan size135 mm
Fan bearinghydrodynamic
Certification80+ Gold
ATX12V version3
Power connectors
MB/CPU power supply24+8+8(4+4) pin
SATA8
MOLEX4
PCIe 8pin (6+2)1
PCIe 16pin2 pcs
Floppy
Cable systemmodular
Cable length
MB600 mm
CPU750 mm
PCIe600 mm
Max. power
+3.3V22 А
+5V22 А
+12V1104.1 А
-12V0.3 А
+5Vsb3 А
+12V1249 W
+3.3V +5V120 W
-12V3.6 W
+5Vsb15 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP, OTP, UVP
Manufacturer's warranty10 years
Dimensions (HxWxD)86x150x150 mm
Official Websitemsi.com
Added to E-CatalogApril 2025
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog MSI 2026 - new arrivals, bestsellers, and the most relevant models MSI.

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MSI MPG A1250GS PCIE5 Modular ATX PSU - 1250 W

- This MSI PSU is fully modular so you connect only the cables you need - keeping your set up clean- The 1250 W power output... moreis perfect for high-end gaming setups- This PSU is ready for newest graphic cards like RTX 5000 Series, with its ATX 3.1 certificate and PCIe 5.1 support- Get lower power consumption and cooler temperature thanks to its 80 PLUS Gold certification- The 135 mm fan has fluid dynamic bearing which keeps your system cool and quiet - you probably won't hear it at all- Embossed jacket cables twist, bend, and route with ease, making cable management easy- Get peace of mind along with the protection as it supports whole bunch of protection standards
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£139.99
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MSI MPG A1250GS PCIE5 Modular ATX PSU - 1250 W 126277

80 PLUS Gold 135 mm fan 10 years guarantee - This MSI PSU is 
Business.Currys.co.uk
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Msi MPG A1250GS PCIE5

EU Plug.Featuring ATX 3.1 and PCIe 5.1 support with two 12V-2x6 connectors, these PSUs are built to handle NVIDI´s 50 series... moregraphics cards and AI PCs with ease.Advanced thermal solutions ensure cool, stable, and efficient operation, even under heavy loads, giving you the reliability and durability you need for gaming, streaming, or AI-powered tasks.MSI MPG A1250GS PCIE5.Total power:1250 W, AC input voltage:100 - 240 V, AC input frequency:50/60 Hz.Motherboard power connector:20+4 pin ATX, Motherboard power cable length:60 cm, Cabling type:Fully-Modular.Purpose:PC/Server, Power supply unit (PSU) form factor:ATX, 80 PLUS certification:80 PLUS Gold.Product colour:Black, Cooling type:Semi-passive, Fan diameter:13.5 cm.Width:150 mm, Depth:86 mm, Height:150 mm.Supports Nvidia® GeForce RTXTM 50 series graphics cards.2 x native 12V-2x6 connector.Dual-color 12V-2x6 cable.80 PLUS Gold certified.Optimized the sound level.100% all Server-grade 105oC capacitor.Embossed Jacket Cables, the cables are more bending and routing.Industrial level protection with OCP/ OTP/ OPP/ SCP/ OVP/ UVP/ SIP/ NLO.
Tradeinn.com
Delivery: in United Kingdom
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1250W MSI MPG A1250GS PCIE5 Modular 80 Plus Gold PSU

Lasting Durability, Quietly Yours. The MPG A1250GS PCIE5 provides 80 PLUS Gold certified power efficiency, Dual-native 12V-2... morex6 connectors to support the latest gaming graphics cards, and is ATX 3.1-ready. Cooling is managed by a durable and silent 135 mm Fluid-dynamic bearing (FDB) fan. Outfitted with a half bridge LLC DC-to-DC topology and semi-digital design, and a fully modular design, embossed Jacket cables with pre-installed cable organizers simplify cable management for a cleaner and more efficient setup. Dual PCIe 5.1 GPU Support (Dual-native 12V-2x6 Connectors) Through the Dual-native 12V-2x6 PCIe connectors, the PSU can deliver up to 600W of power per port to a PCIe 5.1 GPU. The new connector structure, along with its distinctive yellow color, helps to easily identify and prevent loose connections. Gold Efficiency Certified The efficiency of a power supply directly impacts system performance and power consumption. A Gold certification represents an exceptional standard for energy efficiency, offering up to 90% efficiency. This ensures reduced power consumption while maintaining peak performance at higher efficiency levels. 135 mm FDB Fan A 135 mm Fluid-Dynamic Bearing (FDB) fan offers reliable cooling performance that balances both noise and temperature output. Low Noise Operation This power supply is designed for quiet operation, keeping noise levels as low as a peaceful night. It also includes a Zero Fan Mode for completely silent performance during low loads. Embossed Jacket Modular Cables The sleek matt black embossed jacket cables not only elevates its appearance but also makes cable management significantly easier and more sophisticated for users. A fully modular design means that only the connectors required by the build are used. This significantly reduces cable clutter, simplifying the overall build and improving airflow. 100% Server-grade 105°C Capacitors This power supply features 100% Server-grade 105°C capacitors alongside advanced Infineon CoolMOS and SiC SBD components. It is designed for efficient power conversion and ensures long-lasting, safe operation. Half-bridege LCC Topology + DC-to-DC Robust internals support a wide range of AC inputs, while delivering stable output for high performance components. A half-bridge LLC with DC-to-DC converter includes an active PFC design. Extensive Connectivity A wide range of connectivity options provides extensive hardware support. Connect and upgrade multiple hard drives, SSDs, graphics cards and other components quickly and easily.
CCLonline.com
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£154.99
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MSI MPG A1250GS (2025) 1250W Full Modular Compact 80+ Gold PCIE 5.1 Qu

Scan.co.uk
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£199.99
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Series MSI MPG
User reviews 5
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ordinary model, nothing special
26 December 2025 
Overall, the power supply gives the impression of being high quality: compact, cool, and completely silent when idle. There's a 0% RPM mode button — up to about 40% load, the fan doesn't spin, and it really works. It's convenient for assembly, plus it looks neat, the cables are of normal stiffness, and the bag for them included is a small but pleasant touch.

However, under load, something starts that ruins the whole impression. With the connected 12V-2×6, a cyclic sound appears, very similar to the whistling or buzzing of inductors. At first, I blamed the hard drive, then the video card, checked everything one by one — no, it's definitely the power supply. It's not a loud roar, but it's intrusive and irritating, especially when the system is generally quiet.

There are no issues with operation: the voltages are stable, nothing disconnects, the computer doesn't shut down, and everything is okay with diagnostics. But expectations were higher — after all, it's ATX 3.1, with stated "top-notch" circuitry and Japanese components. And once again MSI: it looks good on paper, but in practice, there's a nuance that's hard to ignore. If it weren't for that noise under load — it would be a very successful power supply.
It is really cool, it is really powerful. Nice packaging, a bag with cables. Small size of the power supply unit.
Sings under load.
Oleksandra K: use MSI A850G PCIE5 more than year
Discuss
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12vhpower doesn't fit completely into the video card
25 December 2025 
Top power supply, has all Japanese capacitors, for powering 3090ti, 7500f
enough to power the not very energy-efficient 3090ti, the presence of a bag, modularity of cables
there may be hard wires
Artem: use MSI A850G PCIE5 few months
Discuss
 Show Original
ordinary model, nothing special
20 December 2025 
The MSI MPG PCIE5 power supply has been part of my setup for a while now, and overall it's a modern, solid device—decent material quality, looks good, and the support for PCIe 5.0 seems promising for the future. But there's one nuance worth knowing.

In normal mode, without heavy load, everything is quiet and calm—almost inaudible. But once the graphics card or system is under load, the PSU starts emitting a not-so-pleasant cyclical sound. It's not just fan noise or a gentle cooling breath—it's a rhythmic tone that noticeably stands out among other components. I can't say for sure whether it's the fan making that noise or some electrical element in the circuits buzzing/ringing under load, but it stands out more than you'd like from a PSU positioned above the mid-range segment.

When the system is calm—you almost forget about the PSU. But during games or heavy tasks, when the graphics card is active—this sound starts to very noticeably "talk" with the rest of the case noises, and it's not always pleasant. My system is quiet, and you really only notice this sound when you take off your headphones...at night. So I wouldn't say it's that loud.

To me, it's not critical or a sign that it's breaking—just a fact you notice in everyday use. If silence in your PC is very important, it's worth keeping this in mind. Otherwise, it comfortably handles a 5070, 12600KF, tons of fans, 3 SSDs, and 1 HDD without heating up.
Cool, modern, lots of connectors.
The sound... at first I thought it was a throttle on the video card, but no, it's still the same block.
Reverse_rain: use MSI A850G PCIE5 more than year
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MSI MPG PCIE5 configurations

Price for MSI MPG PCIE5
MSI MPG PCIE5 A850G PCIE5from £79.9811 offers
MSI MPG PCIE5 A1000G PCIE5from £104.9917 offers
MSI MPG PCIE5 A1250GS PCIE5from £139.985 offers
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