You are here:

Home
Components
Quiet Power Supplies

Quiet Power Supplies

Power is the lifeblood of any PC and it pays to make sure it's as clean and reliable as possible. Our high-quality range of power supply units offer a great combination of performance and value.

High Performance Quiet PSUs

It is highly recommended for a modern PC system to incorporate a high-quality PSU capable of coping with the power demands of the most up to date components. However, a powerful PSU does not necessarily need to be noisy! Quiet PC's range of near-silent power supply units all have quiet features to ensure a virtually silent.

Upgrading a noisy PC power supply

With any significant upgrade of your PC you should consider whether your new components need a more powerful and quiet PSU. Our range of virtually silent PSUs are able to handle the most demanding power requirements. Smooth, clean outputs, excellent regulation, effortless power delivery, rock-solid reliability day in, these are all features which make these quiet PC power supplies the number one choice for the discerning customer.

Why do you need a high quality PSU?

Compromising on your PSU can mean compromising on system stability. Poor voltage regulation and filtering from your PC power supply can cause component stress and cause your system to crash randomly. This can cause the loss of important data and ultimately decrease the lifespan and reliability of your PC. All of our quiet PSUs are standard 100% ATX compatible units. They are AMD approved and conform fully to Intel's ATX specification.

How can PSUs contribute to PC noise?

As the PC Power Supply Unit converts power from AC to low-voltage DC, some electricity is unavoidably converted to heat. To prevent the PSU getting too hot this heat is removed by a built in fan (or two). Fans can be a major cause of PC noise due to airflow and fan bearings. The virtually silent PSUs we have selected all address this by using innovative technology to optimise efficiency and reduce fan noise. For example our power supplies have a built-in temperature controlled fan. The fan's RPM will increase depending on the internal temperature of the PSU. Other power supplies go one step further and turn the fan off completely. It only rotates when the internal temperature of the PSU reaches a certain point. From a noise point of view this gives you quietness you would expect but also the peace of mind that the fan will start if things get a little hot.

Browse by PSU wattage

500W or lower

501W to 600W

601W and above

Non-standard / MicroATX PSUs

Our current stock of ATX power supplies are all standard, measuring a minimum of 86 x 150 x 140mm. If you are looking for a replacement MicroATX or a non-standard PSU then unfortunately we do not have anything available.

Dell owners

Our quiet power supply units are fully ATX compliant, which means that they will work in any standard ATX PC. You may or may not realise that PCs manufactured by Dell may use a power supply which often looks to be industry-standard, but in fact employs different wiring which makes replacement of the power supply with an ATX model impossible. Sometimes the physical size of the Dell PSU is different too. This approach ensures that when you need to replace or upgrade Dell components, the only place you can buy them from is Dell! With this in mind, Dell owners please check that our PSUs are compatible with your system before you buy. However, we do know that Dell 8250, 8300 and 4600 models use standard ATX power supplies so you can use any of our power supplies in these machines.

2127

	Zalman ZM1250 Platinum Semi-Fanless 1250W Modular PSU
	Price: £183.33 80 PLUS Platinum certified PSU 89-93% Smart Fan control system - Fanless up to 40% load Guaranteed to provide 1250W continuous power High quality 105°C Japanese capacitors Multi-GPU ready for 4-Way CrossFireX and SLI Full Bridge and LLC resonance circuit with DC-DC module Smart fan control system Meets ErP 2010 Lot6 standby power standards Safety / EMI Approvals, CE, FCC, UL, CB, KC certified 5 Year warranty More information		Ultra
	1 in stock

	Zalman ZM1000-HP Plus Heatpipe Cooled Modular Power Supply
	Price: £162.49 80-PLUS Certified Heatpipe installed cooling system Modular cabling system Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards More information
	2 in stock, 4 more due on 21 Jun

	Nexus RX-1.1K 1100W 15.5dB(A) Ultra-Quiet Modular PSU, 80PLUS GOLD
	Price: £149.20 Single 12V rail design 88% efficiency; complies with 80PLUS GOLD specifications Modular cables sleeved with X-mesh Active PFC Very quiet 13.5cm fan from 15.5 dB(A) More information		Ultra
	7 in stock (B‑Grade available)

	Yesico FL-550ATX Fanless 550W PSU
	Price: £126.80 Fanless – 0 dBA Less dust pollution Rounded heat-sink fits into all PC-cases Full aluminium body as complete radiator for the ideal heat dissipation TMS - Thermal Management System Nylon sleeves on all cables More information
	3 in stock

	Zalman ZM850-HP Plus Heatpipe Cooled Modular Power Supply
	Price: £124.99 80-PLUS Certified Heatpipe installed cooling system Modular cabling system Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards 205d More information
	3 in stock, 4 more due on 21 Jun

	Nofan P-400A Silent 400W Fanless Power Supply Unit
	Price: £107.34 Fanless design for a 100% silent and dust-free PC 86% efficiency; complies with 80PLUS BRONZE certification Mesh-sleeved cables with velcro cable management 400 watt output (560W peak) gives ample power for most non-gaming PCs Standby power under one watt More information		Ultra
	6 in stock, 584 more due on 24 Jun

	Nesteq Semi-Fanless ASM PSU, 620W
	Price: £101.73 Runs 99% fanless 2 x PCI-E, 20/24-pin connectors From 0 dB(A) 450W, 520W, 620W More information
	Coming soon

	Nexus RX-8500 850W 15.5dB(A) Ultra-Quiet Modular PSU
	Price: £101.63 Multiple 12V rail design 82% efficiency; complies with 80PLUS BRONZE specifications Modular cables sleeved with X-mesh Active PFC Very quiet 13.5cm fan from 15.5 dB(A) More information
	4 in stock, 12 more due tomorrow (B‑Grade available)

	Nesteq Semi-Fanless ASM PSU, 520W
	Price: £91.30 Runs 99% fanless 2 x PCI-E, 20/24-pin connectors From 0 dB(A) 450W, 520W, 620W More information
	Coming soon (B‑Grade available)

	Zalman ZM600-HP Plus Heatpipe Cooled Modular Power Supply
	Price: £83.33 80-PLUS Certified Heatpipe installed cooling system Modular cabling system Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards More information
	13 in stock, 10 more due on 21 Jun	208e

	Nesteq Semi-Fanless ASM PSU, 450W
	Price: £81.73 Runs 99% fanless 2 x PCI-E, 20/24-pin connectors From 0 dB(A) 450W, 520W, 620W More information
	Coming soon (B‑Grade available)

	Nexus RX-6500 650W 15.5dB(A) Ultra-Quiet Modular PSU
New	Price: £77.00 Single 12V rail design 85% efficiency; complies with 80PLUS BRONZE specifications Modular cables sleeved with X-mesh Active PFC Very quiet 13.5cm fan from 15.5 dB(A) More information
	12 due tomorrow

	Nesteq ASM X-Zero 500W Heat-piped Cooled Semi-Fanless PSU
	Price: £76.36 Highly efficient heat pipe cooling Active PFC (Power Factor Correction) Up to 89% Efficiency ATX12V Version 2.2, EPS12V Version 2.91 +12V Power - Plus Technology Advanced Silent Mode (ASM) Technology Stack Effect Cooling Solution (SECS) Power Monitoring Panel Enhanced Easy Connecting System (EECS) More information
	35 in stock

	picoPSU 160W picoPSU and AC/DC adapter block
	Price: £74.99 Very small, can build ultra-compact PC enclosures and slim server enclosures Fits any motherboard equipped with 24pin ATX connector 100% silent, fanless, no moving parts Highly efficient design, does not produce a lot of heat Ideal for Intel Ivy Bridge processors as VIA C7/nano or AMD motherboards More information
	22 in stock

	Streacom 150W nanoPSU and AC/DC adapter block
2016	Price: £69.99 Very small, can build ultra-compact PC enclosures and slim server enclosures Fits any motherboard equipped with 24pin ATX connector 100% silent, fanless, no moving parts Highly efficient design, does not produce a lot of heat Ideal for Intel Ivy Bridge processors as VIA C7/nano or AMD motherboards More information
	109 in stock

	Xilence XP600-12R Power 600W Quiet PSU
	Price: £65.21 ATX2.2 PSU 2 x PCI-E, 20/24-pin connector From 19.5 dB(A) Very quiet 135mm fan More information
	2 in stock

	Nesteq ASM X-Zero 400W Heat-piped Cooled Semi-Fanless PSU
	Price: £63.13 Highly efficient heat pipe cooling Active PFC (Power Factor Correction) Up to 89% Efficiency ATX12V Version 2.2, EPS12V Version 2.91 +12V Power - Plus Technology Advanced Silent Mode (ASM) Technology Stack Effect Cooling Solution (SECS) Power Monitoring Panel Enhanced Easy Connecting System (EECS) More information
	21 in stock

	Zalman ZM700-GT 700W 80-PLUS Quiet Power Supply
SPECIAL OFFER	Save13% Price: £61.36 Was £70.80 80-PLUS Bronze Certified Two Forward Switching design Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards Ultra-quiet 120mm fan More information
	17 in stock

	Xilence SPS-XP700 Power 700W PSU with 135mm fan
2062	Price: £61.27 ATX2.2 PSU 2 x PCI-E, 20/24-pin connector From 19.5 dB(A) Great Value More information
	4 in stock

	Nexus NX-5000 V1 550W Real Silent Compact ATX Power Supply
New	Price: £58.33 Single 550W 12V rail PSU High efficiency (over 85% at all levels) Sleeved cables with X-mesh Active PFC Real Silent 12cm fan, from 15dB(A) Excellent airflow, honey-comb grill Full range automatic; auto voltage selection Multiple safety features such as: overvoltage and short-circuit protection More information
	38 in stock

	QTechnology QT-08560G Gold Ultra-Quiet 560W PSU with 120mm AcoustiFan
	Price: £58.08 Features the ultra-quiet 120mm Dustproof AcoustiFan Extremely well specified in terms of cables and connectors Highly efficient power conversion circuitry (over 80%) Auto-ranging worldwide mains voltage compatible, with master on/off switch Fully braided cable loom More information
	13 in stock

	Zalman ZM600-GT 600W 80-PLUS Quiet Power Supply
SPECIAL OFFER	Save13% Price: £48.88 Was £56.40 80-PLUS Bronze Certified Two Forward Switching design Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards Ultra-quiet 120mm fan More information
	71 in stock

	QTechnology QT-03460G Gold Ultra-Quiet 460W PSU with 120mm fan
	Price: £45.06 Features ultra-quiet 120mm fan Extremely well specified in terms of cables and connectors Highly efficient power conversion circuitry (over 80%) Auto-ranging worldwide mains voltage compatible, with master on/off switch Fully braided cable loom More information
	2 in stock	2055

	Zalman ZM500-GT 500W 80-PLUS Quiet Power Supply
SPECIAL OFFER	Save13% Price: £38.10 Was £43.97 80-PLUS Bronze Certified Two Forward Switching design Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards Ultra-quiet 120mm fan More information
	8 in stock

	Zalman ZM460B-APS ATX Noiseless PSU 460W
	Price: £37.94 Complies with Intel ATX12V specification version 2.2 Full range input voltage (auto switching) ATX "20+4"-pin motherboard connector Includes ATX12V CPU (4-pin) and EPS12V CPU (8-pin) connectors Includes Dual PCI Express VGA power connectors (6-pin) Improved (active) power factor correction More information
	1 in stock

	Zalman ZM500-GS 500W Power Supply
	Price: £33.33 Two Forward Switching design Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards Ultra-quiet 120mm fan More information
	47 in stock, 60 more due on 21 Jun

	Zalman ZM450-GS 450W Power Supply
	Price: £29.16 Two Forward Switching design Less than 1W standby power Meets ErP Lot 6, standby power and efficiency standards Ultra-quiet 120mm fan More information
	28 in stock

	Zalman ZM360B-APS ATX Noiseless PSU 360W 2025
	Price: £20.25 Complies with ATX12V version 2.2, ATX version 2.03 Ultra-quiet 120mm fan 2 x PCI-E, 20/24-pin connectors From 18 dB(A) 360W More information
	1 in stock

	Acousti AFG-PSU Anti-vibration Power Supply Gasket
	Price: £4.99 Super-soft silica gel gasket eliminates power supply fan vibration Significantly reduces low frequency noise level Easy to install and transferable when you upgrade your PSU Protects fan and power supply from physical shock Includes 8 x screws/soft washers for alternative/additional mountings More information
	561 in stock

	Quiet PC Serial ATA Power Adapter Cable (Single)
	Price: £2.49 Has a 4-pin Molex plug at one end, and a SATA power socket at the other Useful when adding extra hard drives when no spare SATA power connectors are available Excellent quality, great value and easy to install Approximately 15cm long More information
	16 in stock

	150W nanoPSU and AC/DC adapter block (21%)
	AFG-PSU Anti-vibration Power Supply Gasket (18%)
	160W picoPSU and AC/DC adapter block (18%)
	21c4 P-400A Silent 400W Fanless Power Supply Unit (16%)
	ZM450-GS 450W Power Supply (6%)
	ZM500-GS 500W Power Supply (4%)
	NX-5000 V1 550W Real Silent Compact ATX Power Supply (4%)
	Serial ATA Power Adapter Cable (Single) (3%)
	RX-6500 650W 15.5dB(A) Ultra-Quiet Modular PSU (3%)
	RX-8500 850W 15.5dB(A) Ultra-Quiet Modular PSU (3%)

Your Basket

PC Systems

Components Brands

Components Categories

Top 10 power supplies

FAQ

Quiet Power Supplies

High Performance Quiet PSUs

Upgrading a noisy PC power supply

Why do you need a high quality PSU?

How can PSUs contribute to PC noise?

Browse by PSU wattage

Non-standard / MicroATX PSUs

Dell owners

Zalman ZM360B-APS ATX Noiseless PSU 360W 2025

Our Address

Our Numbers

Useful Information

Keep In Touch