MSI MPG PCIE5 A850G PCIE5
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An advanced and highly efficient power supply unit for high-performance computer systems. This model is compatible with the ATX 3.0 architecture, enabling it to power the latest motherboard, processor, and graphics subsystem solutions. The model features a 16-pin GPU connector with support for PCIe 5.0. Now, the computer can easily use next-generation graphics cards, such as NVIDIA GeForce RTX 40 and other similar solutions.
The device is certified according to 80 Plus Gold standards, ensuring high energy efficiency. The MSI MPG PCIE5 A850G PCIE5 computer power supply operates on an ultra-modern LLC Half Bridge converter, complemented by a DC-DC system. This device provides the highest precision and maximum stability of output voltage. The model is equipped with a fully modular wire design. Practical flat cables are used for connecting components and can be easily routed through cable management lines. The power supply features a hybrid cooling system. A special button activates the silent cooling mode.
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.
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 A850G Modular ATX PSU - 850 W | £89.99 |  | |||
MSI MPG A850G Modular ATX PSU - 850 W 123342 | £89.98 |  | |||
MSI MPG A850G PCIE5 850W PSU 80 PLUS Gold Modular ATX 3.0 Power Supply | £109.99 |  | |||
MSI MPG A850G PCIE5 power supply unit 850 W 24-pin ATX ATX Black | £114.38 |  | |||
| £114.38 |  | ||||
8 more offer(s)
Series MSI MPG
850 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
liquid cooling, per processor, AMD: AM4, AM5, TR4, Intel: 1150, 1155/1156, 2011 v3, 2066, 1151/1151 v2, 1200, 1700 1851, fan: 3, 120 mm, depth 25 mm, backlight, UV glow, backplate mount, display
850 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
gaming, Midi Tower, E-ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
fan, on body, fan: 3, 120 mm, depth 28 mm, 1900 rpm, backlight, UV glow, хаб в комплекте
1300 W, 24+8+8(4+4) pin, 7 x 6+2 pin, 2 x 16 pin, SATA 8, Molex 4, ATX, modular, semi-passive СО, backlight, mining, certificate 80+ Titanium
gaming, Midi Tower, ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
fan, on body, fan: 3, 120 mm, depth 28 mm, 1900 rpm, backlight, UV glow, хаб в комплекте
1000 W, 24+8+8(4+4) pin, 1 x 6+2 pin, 2 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
gaming, Midi Tower, E-ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
1000 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
1250 W, 24+8+8(4+4) pin, 1 x 6+2 pin, 2 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
gaming, Midi Tower, E-ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
750 W, 24+8+8(4+4) pin, 6 x 6+2 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, mining, certificate 80+ Gold, warranty 10 years
gaming, Midi Tower, ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
gaming, Midi Tower, E-ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
gaming, Midi Tower, E-ATX, no PSU, front panel: USB A 2 pcs, USB C 1 pcs, fan backlight, 4 fans
1 2 0 2 |
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 |
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 |
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 |
3 out of 5 user review(s) shown
2 more user review(s)
MSI MPG PCIE5 configurations
| Price for MSI MPG PCIE5 | ||||
|---|---|---|---|---|
 | MSI MPG PCIE5 A850G PCIE5 | from £89.98 | 13 offers | |
 | MSI MPG PCIE5 A1000G PCIE5 | from £104.99 | 17 offers | |
 | MSI MPG PCIE5 A1250GS PCIE5 | from £139.98 | 5 offers | |
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850 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 92 %, semi-passive СО, mining, certificate 80+ Platinum, warranty 10 years
1000 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 3, ATX, modular, Efficiency 90 %, mining, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, mining, certificate 80+ Gold, warranty 10 years
1050 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 3, ATX, modular, mining, certificate 80+ Gold, warranty 5 years
1050 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
750 - 1600 W, ATX, modular, 24+8+8(4+4) pin, 3 - 8 x 6+2 pin, 1 / 2 x 16 pin, SATA 9 / 12, Molex (IDE) 3 / 6
650 - 850 W, ATX, 24+8+8(4+4) pin, 2 / 3 x 6+2 pin, - / 1 x 16 pin, SATA 2, Molex (IDE) 1
750 - 1200 W, ATX, modular, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 / 2 x 16 pin, SATA 9, Molex (IDE) 2
850 - 1250 W, ATX, modular, 24+8+8(4+4) pin, 1 / 6 x 6+2 pin, 1 / 2 x 16 pin, SATA 8 / 12, Molex (IDE) 4
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.