Cooler Master V850 SFX Gold ATX 3.1, UK Plug – 850W 80 PLUS Gold, Fully Modular Power Supply Unit, SFF/mini-ITX PSU, 92mm FDB Fan, PCIe 5.1 Cable, SFX-to-ATX Bracket, 10-Year Warranty
£148.53
Price: £148.53
(as of Jun 05, 2025 10:26:05 UTC – Details)
From the manufacturer
Cooler Master V850 SFX Gold ATX 3.1
Small but Mighty
The Cooler Master V850 SFX Gold ATX 3.1 (UK plug) is an upgraded variant of the original V850 SFX Gold, but with ATX 3.1 compliant safety features and an enhanced PCIe 5.1 12V-2×6 GPU cable with 90-degree connector.
Efficient & Reliable
The power supply has an 80 PLUS Gold efficiency rating (typical efficiency of 90%), features fully modular cabling, and comes with OPP, OVP, OTP, OCP, SCP, UVP, surge and inrush protections.
Key Features Compact SFX Form Factor (850W) 80 PLUS Gold Efficiency ATX 3.1 Compliant Quiet 92mm FDB Fan ATX 5.1 GPU Connector SFX/ATX Compatibility Fully Modular Cabling 100% Japanese Capacitors
Compact SFX Form Factor
Cooler Master V SFX Gold ATX 3.1 power supplies feature an ultra- compact form factor, specifically to meet the needs of mini-ITX system builders (ATX 3.1 & SFX 12V Ver. 3.4 / 100 x 125 x 63.5 mm).
80 PLUS Gold Efficiency
The efficiency of a power supply unit directly affects system performance, thermal loading, and power consumption.
The V850 SFX Gold ATX 3.1 has an 80 PLUS Gold efficiency rating, meaning it has a typical efficiency of 90%*.
*Up to 92% on 230V volt UK mains.
ATX 3.1 Compliant
ATX 3.1 builds upon ATX 3.0 but replaces the former 12VHPWR graphics card connector with the 12V-2×6 connector*.
*These require longer terminals for secure connectivity, and shorter sense pins for earlier power-off safety. Cooler Master plugs provide additional safety augmentations.
92mm FDB Fan
The primary cause of noise in a PSU is typically the fan. The V850 SFX Gold 3.1 features a 92mm Fluid Dynamic Bearing (PWM) fan that delivers quiet yet durable performance:
10 dBA @ 700 RPM min.25 dBA @ 2100 RPM max.MTTF: >100,000 hours
ATX 5.1 GPU Connector
The 90-degree 12V-2×6 PCIe 5.1 Cooler Master connector features superior electrical durability, a more secure fit, and lower temperature extremes for improved safety when connecting to high-power GPUs.
SFX/ATX Compatibility
With the included SFX-to-ATX bracket, the V SFX Gold ATX 3.1 Power supplies can be housed in either an SFX or standard ATX PSU bay.
Fully Modular Cabling
Modular cabling reduces clutter, increases airflow, and improves overall thermal performance.
100% Japanese Capacitors
Large, high-quality Japanese capacitors offer superior reliability, while reducing undesirable ripple noise.
ATX 5.1 GPU Connector
SFX/ATX Compatibility
Fully Modular Cabling
100% Japanese Capacitors
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Customer Reviews
4.2 out of 5 stars 192
4.2 out of 5 stars 192
4.2 out of 5 stars 192
4.2 out of 5 stars 192
Price
£99.63£99.63 £139.99£139.99 £127.75£127.75 £148.53£148.53
80 PLUS Rating
80 PLUS Gold 80 PLUS Gold 80 PLUS Gold 80 PLUS Gold
Wattage
750 Watts 750 Watts 850 Watts 850 Watts
Form Factor (Dimensions)
SFX (100x125x63.5mm) SFX (100x125x63.5mm) SFX (100x125x63.5mm) SFX (100x125x63.5mm)
Colour Options
Black | White Black | White Black | White Black | White
ATX Version
SFX 12V Ver. 3.42 ATX 3.1 & SFX 12V Ver. 3.42 SFX 12V Ver. 3.42 ATX 3.1 & SFX 12V Ver. 3.42
Protections
OVP, OPP, SCP, OCP, UVP, OTP, Surge and Inrush Protection OVP, OPP, SCP, OCP, UVP, OTP, Surge and Inrush Protection OVP, OPP, SCP, OCP, UVP, OTP, Surge and Inrush Protection OVP, OPP, SCP, OCP, UVP, OTP, Surge and Inrush Protection
Cable Type
Fully Modular Fully Modular Fully Modular Fully Modular
Cables Included
ATX 24 Pin x 1, EPS 4+4 x 1, EPS 8-Pin x 1, SATA x 8, Peripheral 4-Pin x 4, PCI-e 6+2 Pin x 4 ATX 24 Pin x 1, EPS 4+4 x 1, EPS 8-Pin x 1, SATA x 8, Peripheral 4-Pin x 4, PCI-e 6+2 Pin x 4 and a PCIe 5.1 12V-2×6 cable with 90-degree plug ATX 24 Pin x 1, EPS 4+4 x 1, EPS 8-Pin x 1, SATA x 8, Peripheral 4-Pin x 4, PCI-e 6+2 Pin x 4 ATX 24 Pin x 1, EPS 4+4 x 1, EPS 8-Pin x 1, SATA x 8, Peripheral 4-Pin x 4, PCI-e 6+2 Pin x 4 and a PCIe 5.1 12V-2×6 cable with 90-degree plug
SMALL FORM FACTOR – The V850 SFX Gold ATX 3.1 PSU (UK Plug) is designed for small form factor (SFF) mini-ITX PC cases with compact PSU bays (100 x 125 x 63.5 mm) but can be installed in ATX cases via the included SFX-to-ATX bracket
80 PLUS GOLD, ATX 3.1 COMPLIANT – 90% Efficiency 80 PLUS Gold (under typical loading) is ideal for compact SFF PCs as it means lower utility costs and heat accumulation; ATX 3.1 standards ensure safer, more secure high-power 12V connectivity to the GPU
PCIE 5.1 MODULAR CABLING – Full cable management simplifies builds and improves internal ventilation; Includes ATX 24 Pin x 1, EPS 4+4 x 1, EPS 8-Pin x 1, SATA x 8, Peripheral 4-Pin x 4, PCI-e 6+2 Pin x 4 and a PCIe 5.1 12V-2×6 cable with 90-degree plug
QUIET FDB FAN – Employs an elite 92mm fluid dynamic bearing (FDB) fan which keeps temperatures and noise low (700 RPM, 10 dBA min.) and performance high (2100 RPM, 25 dBA max.)
BUILT TO LAST – The V850 SFX Gold ATX 3.1 PSU offers durable performance, outstanding component quality (100% Japanese capacitors) and comes with a 10 year standard warranty for ultimate peace of mind
Customers say
Customers find the power supply performs better than full ATX units, with one mentioning it powers their Ryzen 5800x well. They appreciate its compact size and good looks, and consider it great value for money. The noise level receives mixed feedback – while some find it relatively quiet, others report high-pitched whining noise. Customers have mixed opinions about the cable length, with some praising the fully modular design while others find them short and stiff.
13 reviews for Cooler Master V850 SFX Gold ATX 3.1, UK Plug – 850W 80 PLUS Gold, Fully Modular Power Supply Unit, SFF/mini-ITX PSU, 92mm FDB Fan, PCIe 5.1 Cable, SFX-to-ATX Bracket, 10-Year Warranty
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£148.53
Arkadiusz –
Outstanding PSU for Compact Builds
The Cooler Master V850 SFX Gold is a fantastic power supply unit. With 850W of power, 80 PLUS Gold efficiency, and fully modular cables, itâs perfect for SFF/mini-ITX builds. The quiet fan and semi-fanless mode add to its appeal. The included SFX-to-ATX bracket and 10-year warranty are great bonuses. Highly recommended!
Sorin Bota –
This is one sexy PSU
Looks good, runs smoothly so far. Then again, I don’t have huge power demands of it. But it is modular and the cables are really not that hard to deal with. They are flat PSU cables, almost identical to the ones of modular bequiet PSUs. So, I don’t see why people are complaining so much about rigid cables.
David B. –
Love this PSU for Jonsbo N3 build.
Love this PSU for Jonsbo N3 build. No need to do much to it, as the case has pretty good baffle effect on the fan noise. Plenty of ooomph for 8 bay drive enclosure. Happy Chappy here. Gold rating at this price ? you must be mad !!!. (ME witha poor dying grandmother – also wont haggle)
Daniele Signorile –
Unbareable Coil Whine
The Unit itself works great, except for one extremely annoying issue. The aggressive coil whine.When the computer is turned off, the power supply can be heard making a quiet high pitched electrical noise.If you push any sort of graphically intensive load through this power supply (assuming you have a dGPU) it will start screaming at you with some of the loudest and unbareable coil whine I have ever heard from any power supply. I have tested this with both a GTX 1080 TI and an RX 7800 XT and the problem persists.Knowing this is most likely going to be installed in an SFX case, i’d recommend you spend the extra on a better quality Corsair unit and save yourself the hassle of rewiring your PC all over again.For those that are unaware of what coil whine sounds like, it can be best described as an electrical hissing/screeching noise depending on how bad it is. In my case it was more so the latter and a bit of the former
Gin and Pugs –
Reliable PSU at good price, but cables are a little stiff
The cables on this are very stiff and in my Fractal Ridge case it was basically impossible to do cable management. But I can’t complain much because at the time of buying it’s £60 cheaper than any other reliable brand SFX PSU. Haven’t noticed the fan noise too much, 10 year warranty is awesome, was fairly easy to install despite this being my first PC build. Would recommend
Domas S –
Not as quiet as I wanted but its fine
God its so hard to find a SFX power supply! I finally stumbled upon this one that wasnt overpriced and was rated well on the PSU tier list and I bite the bullet and I dont regret it at all! Great power supply, easily handles my 3070 and Ryzen 7 5800x with ease. Only issue I would say is its definitely audible when the fan kicks on, nothing putting some headphones on cant fix but if your someone whos sensitive to fan noise or wants a super quiet PC I would avoid this power supply and look at alternatives who focus more on quietness. Other than that I have zero complaints! Very good modular cables and it just works!
Mic –
Great for the price
Powers my computer, great quality and value for money wires are long enough for my tall build
Matt –
probably the best PSU for ITX build
If you researched a lot on YouTube before building your own ITX PC, you’ll see this PSU all the time, more than 50% chance the YouTuber use this, may be not too many choices on the market but this one is definitely solid. Everything is pretty tight inside of the case, you’re not likely to put in a RTX 4080 or above, so 750W is good enough (otherwise there’s also a 850W version available).
Federico –
Se non è specificato, e ti trovi su Amazon.it, automaticamente penserai di comprare un prodotto con spinotto italiano e invece no.Non ho ancora testato se funziona e dovrò prendere un adattatore
Muhammad Mazhar –
850w gold, good for any CPU and GPU.
ahmed e. –
Exelent product , delivered before its exp3cted date , good materials used however the plastic finish is not the best for me i don’t care unless it is good with thermals and can handle high power , so be aware while plagging your cables . , also the cables are a little bit stiff and hard to maneuver especially if you have a itx case…For me i have a 3080ti and a 13700k and this thing power them easly , just put in your mind that it provides only 2 pcie cables so if you have a power hungry card , make sure to buy another cable…Conclusion , this product is very good from my point of view , it is as described and yes it is the one with the japanese capavitors , not the faulty one with bad fan curve…Yes when underload it provides some kind of high fan sounds but it is not that bad…Thanks coolermaster keep it on
ersin –
Bonne qualité
Ismael Freitas Gonçalves –
The PSU seems good but it was shipoed with a UK power cable, not clear if it cane with that on the title.