901W & Above PSUs (10 products)

PSUs run at their most efficient when they're at 50% capacity, which means they need to meet more than double the requirements of your existing PC components and with 900W+ PSUs you're setting yourself up for the win. Also, with such a high wattage, you're leaving enough space for you to incorporate additional upgrades into your system.

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Corsair RM1000x 1000W Modular 80+ Gold PSU

  • 8x Molex Connectors
  • 14x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • 8+8+6-Pin CPU Power Connector
  • ATX Form Factor

£ 149.99  inc. vat

£ 124.99 ex. vat

0% Interest offers available

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Corsair HX1200 - 1200 Watt Fully Modular

  • 80 PLUS® Platinum efficiency
  • Zero RPM Fan Mode
  • Quiet, efficient operation
  • Easy Installation

£ 192.99  inc. vat

£214.98save £21.99

£ 160.82 ex. vat

£179.15save £18.33

0% Interest offers available

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MSI MPG A1000G 1000W 80 Plus Gold certified Fully Modular Power Supply

  • 4x Molex Connectors
  • 12x SATA Connectors
  • 7x PCIe Connectors (6+2-Pin)
  • 4+4+8-Pin CPU Power Connector
  • ATX Form Factor

£ 162.78  inc. vat

£ 135.65 ex. vat

0% Interest offers available

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Antec Signature 1300w Platinum Fully Modular PSU/Power Supply

  • 1300W Fully Module Power Supply
  • 80 PLUS Platinum
  • 100% Top-Grade Japanese Capacitors
  • 10 year warranty

£ 218.43  inc. vat

£ 182.02 ex. vat

0% Interest offers available

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Free Next Day Delivery*
Asus ROG Thor 1200W PSU

Asus ROG Thor 1200W PSU

  • 80 Plus Platinum Certification
  • OLED Power Display
  • ROG Thermal Solution
  • Asus Aura Sync
  • Wing-Blade Fan with 0DB Technology

£ 289.98  inc. vat

£ 241.65 ex. vat

0% Interest offers available

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EXDISPLAY Thermaltake Toughpower PF1 1050W ARGB Full Modular Power Supply

  • 80 Plus Platinum 1050W Power Supply
  • Sync with Asus, Gigabyte, MSI and ASRock Boards
  • 100% Japanese Capacitors
  • 10 Year Warranty

£ 156.17  inc. vat

£ 130.14 ex. vat

0% Interest offers available

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Thermaltake Toughpower PF1 1050W ARGB Full Modular Power Supply

  • 80 Plus Platinum 1050W Power Supply
  • Sync with Asus, Gigabyte, MSI and ASRock Boards
  • 100% Japanese Capacitors
  • 10 Year Warranty

£ 194.99  inc. vat

£ 162.49 ex. vat

0% Interest offers available

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Be Quiet! Straight Power 11 1000w - 80plus Gold Power Supply

  • Virtually inaudible SilentWings 3 135mm fan
  • 80PLUS® Gold efficiency
  • Powerful multi-GPU support
  • Japanese capacitors ensure reliability
  • 5-year manufacturer’s warranty

Sorry, this product is temporarily out of stock.

Corsair HX1000 1000W 80+ Platinum Fully Modular Power Supply

  • 80 Plus Platinum
  • Fully Modular
  • Zero RPM Mode
  • 10 Year Warranty

£ 217.43  inc. vat

£ 181.19 ex. vat

0% Interest offers available

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Antec High Current Gamer 1000W Modular PSU

  • 6x Molex Connectors
  • 12x SATA Connectors
  • 8x PCIe Connectors (6+2-Pin)
  • 4+4-Pin x2 CPU Power Connector
  • ATX Form Factor

£ 163.98  inc. vat

£ 136.65 ex. vat

0% Interest offers available

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Corsair RM1000x 1000W Modular 80+ Gold PSU

  • 8x Molex Connectors
  • 14x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • 8+8+6-Pin CPU Power Connector
  • ATX Form Factor

QuickFind: 1144843

Mfr part code: CP-9020201-UK

£ 149.99  inc. vat

£ 124.99 ex. vat

0% Interest offers available

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Corsair HX1200 - 1200 Watt Fully Modular

  • 80 PLUS® Platinum efficiency
  • Zero RPM Fan Mode
  • Quiet, efficient operation
  • Easy Installation

QuickFind: 788622

Mfr part code: CP-9020140-UK

£ 192.99  inc. vat

£214.98save £21.99

£ 160.82 ex. vat

£179.15save £18.33

0% Interest offers available

More Info

MSI MPG A1000G 1000W 80 Plus Gold certified Fully Modular Power Supply

  • 4x Molex Connectors
  • 12x SATA Connectors
  • 7x PCIe Connectors (6+2-Pin)
  • 4+4+8-Pin CPU Power Connector
  • ATX Form Factor

QuickFind: 1424366

Mfr part code: MPG A1000G

£ 162.78  inc. vat

£ 135.65 ex. vat

0% Interest offers available

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Antec Signature 1300w Platinum Fully Modular PSU/Power Supply

  • 1300W Fully Module Power Supply
  • 80 PLUS Platinum
  • 100% Top-Grade Japanese Capacitors
  • 10 year warranty

QuickFind: 1264293

Mfr part code: 0-761345-11708-1

£ 218.43  inc. vat

£ 182.02 ex. vat

0% Interest offers available

More Info
Free Next Day Delivery*

Asus ROG Thor 1200W PSU

  • 80 Plus Platinum Certification
  • OLED Power Display
  • ROG Thermal Solution
  • Asus Aura Sync
  • Wing-Blade Fan with 0DB Technology

QuickFind: 865213

Mfr part code: 90YE0080-B001N0

£ 289.98  inc. vat

£ 241.65 ex. vat

0% Interest offers available

More Info

EXDISPLAY Thermaltake Toughpower PF1 1050W ARGB Full Modular Power Supply

  • 80 Plus Platinum 1050W Power Supply
  • Sync with Asus, Gigabyte, MSI and ASRock Boards
  • 100% Japanese Capacitors
  • 10 Year Warranty

QuickFind: 1424893

Mfr part code: EBR1-PS-TPD-1050F3FAPK-1

£ 156.17  inc. vat

£ 130.14 ex. vat

0% Interest offers available

More Info

Thermaltake Toughpower PF1 1050W ARGB Full Modular Power Supply

  • 80 Plus Platinum 1050W Power Supply
  • Sync with Asus, Gigabyte, MSI and ASRock Boards
  • 100% Japanese Capacitors
  • 10 Year Warranty

QuickFind: 1139883

Mfr part code: PS-TPD-1050F3FAPK-1

£ 194.99  inc. vat

£ 162.49 ex. vat

0% Interest offers available

More Info

Be Quiet! Straight Power 11 1000w - 80plus Gold Power Supply

  • Virtually inaudible SilentWings 3 135mm fan
  • 80PLUS® Gold efficiency
  • Powerful multi-GPU support
  • Japanese capacitors ensure reliability
  • 5-year manufacturer’s warranty

QuickFind: 826243

Mfr part code: BN285

Sorry, this product is temporarily out of stock.

Corsair HX1000 1000W 80+ Platinum Fully Modular Power Supply

  • 80 Plus Platinum
  • Fully Modular
  • Zero RPM Mode
  • 10 Year Warranty

QuickFind: 788621

Mfr part code: CP-9020139-UK

£ 217.43  inc. vat

£ 181.19 ex. vat

0% Interest offers available

More Info

Antec High Current Gamer 1000W Modular PSU

  • 6x Molex Connectors
  • 12x SATA Connectors
  • 8x PCIe Connectors (6+2-Pin)
  • 4+4-Pin x2 CPU Power Connector
  • ATX Form Factor

QuickFind: 1420241

Mfr part code: 0-761345-11774-6

£ 163.98  inc. vat

£ 136.65 ex. vat

0% Interest offers available

More Info
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High Performance PSUs

Upgrade your PC with one of our highest specification PSUs. Choose from a fully or semi modular unit and up to 80Plus Titanium certified efficiency ratings. Packed with up to 1500w of power these high-performance Power Supply Units will make a massive difference to your PCs performance and reliability. If you have, or are upgrading to, a good specification PC you need a top quality PSU. All those featured on this page will improve the stability, reliability, and efficiency of your computer. Buy your Power Supply Unit today and we can ship it to you for free (terms and conditions apply).

What does a PSU do?

A power supply unit (PSU) converts mains AC to low-voltage regulated DC power and then distributes it to the internal components of your computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage. The bottom line is that your computer cannot function without a PSU.

How much power do you need?

Let’s say that you need a power supply of 500 watts for your computer. It is recommended that you get more power than you need so that your computer isn’t running at full capacity all the time. So, if you need 500 watts, think about getting 600 watts of power. If your computer runs at full capacity for long periods, its lifespan will be shortened and it will also be less efficient. This, of course, will cost you more in electricity and will also generate more heat and noise. Another reason why you should get more power is that if you have used an online power calculator, they are not always accurate, so give your PC some breathing space.

Extra power for overclocking?

Overclocking, or raising a part’s (CPU, Video Card, RAM) frequency beyond the manufacturer set frequency to gain extra performance, is a strain for a power supply. This means that if you overclock, it is even more important to have a high-quality power supply that can handle the extra load.

More power is consumed by the part which has been overclocked as the frequency increases and if you raise the voltage, then you will use even more power. This in turn puts even more stress on your power supply. Every CPU and video card have different power needs, so it is quite hard to put an exact power consumption figure on each. The wise thing to do is if you overclock, just make sure your power supply can handle the extra load. If you have a cheap power supply or are functioning pretty close to the limit, it is advisable not to overclock or you could damage your computer.

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