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Power Supplies
Browse power supplies at Hardvance for dependable performance, efficient power delivery and long-term system stability. Compare wattage, efficiency ratings, modular designs and connector support to choose a PSU that fits your build with confidence.
ASUS TUF Gaming Power Supply 1200W 80 Plus Platinum Fully Modular ATX 3.1 Black
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ASUS TUF Gaming 1200W Gold EVO Power Supply 80 PLUS Gold Fully Modular ATX 3.1 Black
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ASUS TUF Gaming 850W 80 PLUS Platinum Power Supply Fully Modular ATX 3.1 Black
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ASUS TUF Gaming 1000W 80 Plus Platinum Power Supply Fully Modular ATX 3.1 Black
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ASUS ROG Thor III 1200W 80 PLUS Platinum Fully Modular ATX 3.1 Power Supply – White
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be quiet! Dark Power Pro 14 IO 1600W 80 PLUS Titanium Fully Modular ATX Power Supply – Black
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be quiet! Dark Power Pro 14 IO 1300W 80 PLUS Titanium Fully Modular ATX 3.1 Power Supply, Black
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MSI MPG Ai1300TS Power Supply Unit 1300 W ATX 3.1 80 Plus Titanium Fully Modular Black
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be quiet! Dark Power Pro 13 1300W Power Supply ATX 3.0 80 Plus Titanium Modular
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be quiet! Pure Power 13 M 850W Power Supply 80 PLUS Gold Fully-Modular Black
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ASUS ROG Strix 1000W Power Supply, 80 PLUS Platinum, Fully-Modular, ATX 3.1, Black
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ASUS ROG Strix 850W Platinum Power Supply, ATX 3.1, Fully Modular, Black
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ASRock SL-850GW Steel Legend 850W 80 PLUS Gold Fully Modular ATX Power Supply White
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HP Poly Savi Office Universal AC Power Supply Straight Plug -9V 500mA Black
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Seasonic Focus GX-850 850W 80 Plus Gold Modular PSU White
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Seasonic Focus GX 750W 24-pin ATX White PSU
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Seasonic CORE GX-850, 850W ATX Power Supply, White
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Seasonic CORE GX-750 750W 80 PLUS Gold Fully-Modular ATX 3.1 Power Supply, White
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Seasonic CORE GX-650 650W 80 PLUS Gold ATX PSU
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Seasonic CORE GC-850 ATX 3.1 850W Power Supply Black
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Seasonic CORE GC-750 ATX 3.1 PSU 750W Black
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Seasonic CORE GC-650 650W ATX 3.1 PSU Black
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Seasonic CORE BC-650 650W 80 PLUS Bronze ATX PSU
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Corsair RM750x Power Supply 750W 80 PLUS Gold Fully Modular ATX 3.1 Black
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MSI MAG A1200PLS 1200W PCIe 5 ATX PSU Black
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VIDA ATX-500W-WHT 500W ATX PSU White
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ASUS ATS-750G 750W ATX Power Supply
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Asrock TC-1300T 1300W ATX Power Supply
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Corsair RMe Series RM1000e 1000W ATX PSU White
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Asrock Challenger CL-850G 850W ATX PSU Black
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ASUS ROG THOR 1000P3 1000W 80 PLUS Platinum ATX PSU Black
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ASUS ROG THOR 1200P3 1200W ATX Power Supply
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ASRock Phantom Gaming PG-1000PSF 1000W SFX PSU, 80 PLUS Platinum, ATX 3.1, PCIe 5.1, Fully Modular, Black
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Asrock PG-1600G 1600W ATX PSU Black 20+4 pin
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Asrock PG-1300G 1300W ATX PSU Black 20+4 Pin
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Power Supplies (PSUs) Buying Guide and FAQ
A good power supply keeps your PC stable and protects the parts inside it. Below are clear answers to the questions we are asked most about PSUs in the UK, covering wattage, the 80 Plus ratings, ATX 3.1 and the 12V-2x6 connector, and SFX units for small builds.
What wattage power supply do I need?
Size the PSU around your graphics card. As a rough guide, a mid-range build is happy on a quality 650W or 750W unit, a high-end card wants 850W to 1000W, and an RTX 5090 build is best on 1000W or more. It is fine to leave some headroom, which keeps the PSU running cool and quiet. A 750W or 850W 80 Plus Gold unit suits most gaming PCs.
What do the 80 Plus Bronze, Gold and Platinum ratings mean?
80 Plus measures how efficiently a PSU turns wall power into PC power, which affects heat and running costs. Bronze is the entry level, Gold is the popular sweet spot for quality and value, and Platinum or Titanium are premium and most efficient. For most gaming builds, a reputable 80 Plus Gold unit is the one to choose.
Do I need an ATX 3.1 PSU with a 12V-2x6 connector?
Modern Nvidia cards use the 12V-2x6 (12VHPWR) power connector. An ATX 3.1 PSU provides this natively, so you avoid adapters and get better support for the brief power spikes a graphics card can draw. If you are buying a new high-end graphics card, an ATX 3.1 unit with the right connector is the cleaner choice.
SFX or ATX power supply, which do I need?
ATX is the standard size that fits most mid and full tower cases. SFX is a smaller unit for mini-ITX and small-form-factor builds where a full-size PSU will not fit. Check what your case supports before buying, since the wrong size simply will not mount. For a normal tower, stick with ATX.
How do I work out the right PSU for my build?
Add up the draw of your main parts, with the graphics card and CPU being the big ones, then add headroom and round up to a sensible wattage. A power supply calculator makes this easy, or you can use our rough guide: 650 to 750W for mid-range, 850 to 1000W for high-end, and 1000W and up for the very top cards. When unsure, a little extra wattage never hurts.
Is it safe to buy a cheap power supply?
The PSU is not the place to cut corners, because a poor unit can run hot, trip under load or, in the worst case, damage other parts. Stick to a reputable brand with an 80 Plus rating and a solid warranty. If you like to research first, a PSU tier list is a handy way to see which units are well built. A good quality power supply will happily carry over from one build to the next, so it is a sound long-term buy.