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Power Supply Unit

The humble computer power supply unit (PSU) is very often overlooked when upgrading or building a PC. However, if the PSU is underpowered for all the components then this can lead to instability or crashes. Modern Graphics Cards especially can require quite a hefty power supply, so ensure you choose one which more than covers the wattage required of all of your components. Then to save on those costly energy bills it's worth going for an 80 Plus™ bronze rated unit.

The 80 Plus™ mark certifies products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load and a power factor of 0.9 or greater at 100% load. Then if you want to keep your cabling tidy, a modular unit helps remove unnecessary clutter and leaves your case interior free and clear.

With Novatech's extensive range of brands ranging from Corsair to BeQuiet!, you'll find a PSU to suit your needs with us.

Check out our range of Power Supply Units below.

Showing 1 to 24 of 36

Items per page:
Cooler Master V Series V1200 ATX Power Supply
1200W, 80 PLUS Platinum, Fully-Modular, 7 Year Warranty
11 in stock More information about stock Next Day Delivery only £5.99*

Stock Code: CM-V1200
Manf Code: RSC00-AFBAG1-UK

£209.27

£129.98 inc vat

£108.32 ex vat

You save £79.28

Corsair HXi Series HX850I ATX Power Supply
850W, 80 PLUS Platinum, Fully-Modular, Corsair Link Enabled, 7 Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-HX850I
Manf Code: CP-9020073-UK

£169.98 inc vat

£141.65 ex vat

 

CORSAIR RMx Series RM850x (2018) 80 PLUS Gold Fully Modular ATX Power Supply
850W, 80 Plus Gold, Fully Modular, 100% Japanese 105°C Capacitors, Zero RPM Mode, 10 year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-RM850X
Manf Code: CP-9020180-UK

£104.99 inc vat

£87.49 ex vat

 

Be quiet Dark Power Pro 11 550W 80 Plus Platinum Semi-Modular Power Supply
550W, 80 Plus Platinum, Semi-Modular, Virtually inaudible operation, 5 Year Warranty.
3 in stock More information about stock Next Day Delivery only £5.99*

Stock Code: BQ-BN250
Manf Code: BN250

£136.49

£129.97 inc vat

£108.31 ex vat

You save £6.52

BeQuiet! Straight Power 11 650W Power Supply
650W, 80 Plus Gold, Fully Modular, up to 17.22 dBA, 5-Year Warranty
1 in stock More information about stock Next Day Delivery only £5.99*

Stock Code: BQ-BN282
Manf Code: BN282

£104.99 inc vat

£87.49 ex vat

 

BeQuiet! Straight Power 11 750W Power Supply
750W, 80 Plus Gold, Fully Modular, up to 17.22 dBA, 5-Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: BQ-BN283
Manf Code: BN283

£114.98 inc vat

£95.82 ex vat

 

BeQuiet! Straight Power 11 850W Power Supply
850W, 80 Plus Gold, Fully Modular, up to 17.22 dBA, 5-Year Warranty
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: BQ-BN284
Manf Code: BN284

£139.97 inc vat

£116.64 ex vat

 

BeQuiet! Straight Power 11 1000W Power Supply
1000W, 80 Plus Gold, Fully Modular, up to 17.22 dBA, 5-Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: BQ-BN285
Manf Code: BN285

£169.98 inc vat

£141.65 ex vat

 

Cooler Master MWE 650W 80 Plus Gold Power Supply
650W, 80 Plus Gold, Fully Modular, 120mm Fan, Sealed LDB Fan Bearing, 5 Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CM-MWE650
Manf Code: MPY-6501-AFAAG-UK

£104.63 inc vat

£87.19 ex vat

 

CORSAIR RM750X White Series 750 Watt Power Supply
750W, Fully Modular, 80 Plus Gold, White, 105 Degree Capacitors, Flat White Cables, 0RPM Mode, 10 Year warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-RM750W
Manf Code: CP-9020187-UK

£114.98 inc vat

£95.82 ex vat

 

CORSAIR RMx Series RM750x (2018) 80 PLUS Gold Fully Modular ATX Power Supply
750W, 80 Plus Gold, Fully Modular, 100% Japanese 105°C Capacitors, Zero RPM Mode, 10 year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-RM750X
Manf Code: CP-9020179-UK

£104.99

£103.62 inc vat

£86.35 ex vat

You save £1.37

CORSAIR RM850X White Series 850 Watt Power Supply
850W, Fully Modular, 80 Plus Gold, White, 105 Degree Capacitors, Flat White Cables, 0RPM Mode, 10 Year warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-RM850W
Manf Code: CP-9020188-UK

£130.00

£129.98 inc vat

£108.32 ex vat

You save £0.01

Cooler Master V650 80 Plus Gold Power Supply
650W, 80 Plus Gold, Fully Modular, 100% Japanese 105°C Capacitors, Zero RPM Mode, 10 year Warranty
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: CM-V650G
Manf Code: MPY-6501-AFAAGV-UK

£124.99 inc vat

£104.16 ex vat

 

Cooler Master V750 80 Plus Gold Power Supply
750W, 80 Plus Gold, Fully Modular, 100% Japanese 105°C Capacitors, Zero RPM Mode, 10 year Warranty
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: CM-V750G
Manf Code: MPY-7501-AFAAGV-UK

£134.99 inc vat

£112.49 ex vat

 

Corsair RMX Series RM1000x ATX Power Supply
1000W, 80 PLUS Gold, Fully-Modular, 7 Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-1000X
Manf Code: CP-9020094-UK

£159.98 inc vat

£133.32 ex vat

 

Corsair RMi Series RM650i ATX Power Supply
650W, 80 PLUS Gold, Fully-Modular, Corsair Link Enabled, 7 Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-650I
Manf Code: CP-9020081-UK

£124.99 inc vat

£104.16 ex vat

 

Corsair RMi Series RM750i ATX Power Supply
750W, 80 PLUS Gold, Fully-Modular, Corsair Link Enabled, 7 Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-750I
Manf Code: CP-9020082-UK

£139.99 inc vat

£116.66 ex vat

 

Corsair RMi Series RM850i ATX Power Supply
850W, 80 PLUS Gold, Fully-Modular, Corsair Link Enabled, 7 Year Warranty
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-850I
Manf Code: CP-9020083-UK

£154.98 inc vat

£129.15 ex vat

 

Corsair HX Series™ HX1000 — 1000 Watt 80 PLUS® Platinum Certified Fully Modular PSU
1000 Watt, Fully Modular, 80 Plus Platinum, Low Profile Sleeved Cables
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-HX100F
Manf Code: CP-9020139-UK

£179.99 inc vat

£149.99 ex vat

 

Corsair HX Series™ HX750 — 750 Watt 80 PLUS® Platinum Certified Fully Modular PSU
750 Watt, Fully Modular, 80 Plus Platinum, Low Profile Sleeved Cables
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-HX750F
Manf Code: CP-9020137-UK

£149.99 inc vat

£124.99 ex vat

 

Corsair HXi Series HX750I ATX Power Supply
750W, 80 PLUS Platinum, Fully-Modular, Corsair Link Enabled, 7 Year Warranty
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-HX750I
Manf Code: CP-9020072-UK

£160.00 inc vat

£133.33 ex vat

 

Be quiet Dark Power Pro 11 850W 80 Plus Platinum Semi-Modular Power Supply
850W, 80 Plus Platinum, Semi-Modular, Virtually inaudible operation, 3 Year Warranty.
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: BQ-BN253
Manf Code: BN253

£189.98 inc vat

£158.32 ex vat

 

Corsair SF Series SF600 SFX Power Supply
600W, 80 PLUS Gold, Fully-Modular, 7 Year Warranty
Ordered Upon Request More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-SF600
Manf Code: CP-9020105-UK

£114.24

£104.99 inc vat

£87.49 ex vat

You save £9.25

Corsair SF Series™ SF450 — 450 Watt 80 PLUS® Platinum Certified High Performance SFX PSU
450W, 80 Plus Platinum, SFX Form Factor, 92mm Fan, Fully Modular, Zero RPM Mode, Seven Year Warranty
Dispatches within 1 - 3 Days More information about stock Next Day Delivery only £5.99*

Stock Code: CSR-SFP450
Manf Code: CP-9020181-UK

£119.99 inc vat

£99.99 ex vat

 

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Showing products 1 to 24 of 36 (2 Pages)

Understanding your power supply unit

The power supply unit (PSU) of a computer is often overlooked by our customers when upgrading their PCs. However, while many people prioritise their attention and spending on a motherboard or graphics card, a PSU is just as important. At the end of the day, a power supply unit does what it says on the box – it powers all the components in your computer. If your PSU is underpowered for all the components in a PC, then this can lead to instability or crashes. After all, a high-end graphics card isn’t going to be of much use without the sufficient power to run it.

What to consider when buying a power unit supply

Components such as modern Graphics Cards in particular can require a large power supply, so ensure that you choose a PSU that covers the wattage requirements for all of your components. Intimately knowing your PC build like this will prevent a lot of stress for the future of your PC. Considering details such as the size of your chassis and the correct PSU connections required for your build will help your entire system to run much smoother.

It is recommended that you get a PSU that will be more than powerful enough to reliably operate all a PC’s components. This will also future-proof your system for any potential power-demanding hardware upgrades that you may purchase in the future.

The POWER of a Power Supply Unit

A Power Supply Unit operates within your computer by converting the voltage of the power from the alternating current (AC) into a direct current (DC) to be utilised for the various PC components inside a chassis. This works through a switched-mode power supply that substantially increases the efficiency of converting the electrical power required for your PC.

Make sure to make a note the wattage rating of a computer’s power supply unit before purchasing. This indicates the amount of power that it can provide to your system. A PSU that boasts a higher-wattage will supply more power, with the average desktop power supply providing around 200W – 1800W. However, a PSU’s maximum power will be required to push its limits and effectively run all your computer’s components.

The quality of a power supply unit can be found by looking at its 80 PLUS rating. The 80 Plus™ mark certifies products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load and a power factor of 0.9 or greater at 100% load.

More about Power Supplies

We have a huge range of Power Supplies in stock from all the top brands, including Corsair, EVGA, Bitfenix, BeQuiet and more.

Choosing the right Power Supply for you

The wattage of your Power Supply is very important and will vary on what you are using your PC for. For example if you're running a beastly Gaming PC with a top of the range NVIDIA GeForce GTX 1070 Series Graphics Card, you'll probably wanting to be looking at an 700W+ PSU realistically to ensure smooth, uninterrupted gameplay.