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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.

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  • Power Supply (25)
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  • ASUS(3)
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At most 1,000 W
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  • SFX(3)
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80 Plus rating
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  • Bronze(4)
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  • Platinum(4)
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    SilverStone SST-NJ700 NightJar 700W 80PLUS Titanium Fanless Modular Power Supply

    6 in stock
    SST-NJ700 NightJar 700W 80PLUS Titanium Fanless Modular Power Supply
    €248.22
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    • Ultra-High Efficiency, 80 PLUS Titanium Certified
    • High quality construction with all Japanese capacitors
    • 100% modular cables
    • Strict ±2% voltage regulation and low ripple & noise
    • 24/7 continuous power output with 4°C operating temperature
    • Class-leading single +12V rail
    More Details
    €248.22
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    6 in stock

    Seasonic PRIME SSR-600TL 600W 80PLUS Titanium Fanless Modular Power Supply

    2 in stock
    PRIME SSR-600TL 600W 80PLUS Titanium Fanless Modular Power Supply
    €225.42
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    • Ultra-High Efficiency, 80 PLUS Titanium Certified
    • Micro Tolerance Load Regulation (0.5%)
    • True Fanless Design
    • Fully Modular Cabling Design
    • Multi-GPU Technologies Supported
    • Gold-Plated High Current Connectors/Terminals
    More Details
    €225.42
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    2 in stock

    FSP Hydro PTM Pro 1000W Semi-Fanless Modular PSU, 80+ Platinum OEM

    9 in stock
    Hydro PTM Pro 1000W Semi-Fanless Modular PSU, 80+ Platinum OEM
    €187.52
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    • Semi-fanless design for silent operation
    • Full Japan-made electrolytic capacitors
    • Massive 10 year warranty
    • Powerful single +12V rail design
    • 80 PLUS Platinum certification
    • Full protections: OCP, OVP, SCP, OPP, OTP, UVP
    More Details
    €187.52
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    9 in stock

    Seasonic PRIME SSR-PX500 500W 80PLUS Platinum Fanless Modular Power Supply

    Coming soon
    PRIME SSR-PX500 500W 80PLUS Platinum Fanless Modular Power Supply
    €185.52
    • Ultra-High Efficiency, 80 PLUS Platinum Certified
    • Micro Tolerance Load Regulation (0.5%)
    • True Fanless Design
    • Fully Modular Cabling Design
    • Multi-GPU Technologies Supported
    • Gold-Plated High Current Connectors/Terminals
    More Details
    €185.52
    Coming soon

    ASUS ROG STRIX 850G Semi-Fanless Modular 850W 80Plus Gold PSU

    5 in stock
    ROG STRIX 850G Semi-Fanless Modular 850W 80Plus Gold PSU
    €159.30
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    • Virtually inaudible ROG thermal solution
    • Semi-fanless with 0dB technology
    • 80PLUS Gold certification
    • Fully Modular cable management
    • NVIDIA SLI Ready and AMD CrossFireX
    More Details
    €159.30
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    5 in stock

    Corsair RM-850X V2 850W Levitation Bearing Fan, Fully Modular, 80+ Gold PSU

    3 in stock
    RM-850X V2 850W Levitation Bearing Fan, Fully Modular, 80+ Gold PSU
    €140.02
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    • Massive 850W full modular power supply
    • Ten year warranty
    • 80 PLUS Gold efficiency
    • Zero RPM fan mode at low or medium loads
    More Details
    €140.02
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    3 in stock

    be quiet Straight Power 11 CM 850W Modular 80+ Gold PSU

    2 in stock
    Straight Power 11 CM 850W Modular 80+ Gold PSU
    €138.41
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    • Virtually inaudible operation
    • Very quiet SilentWings 3 fan
    • 80PLUS Gold certification
    • Fully Modular cable management
    • NVIDIA SLI Ready and AMD CrossFireX
    More Details
    €138.41
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    2 in stock

    Streacom ST-ZF240 ZeroFlex 240W Passive PSU

    28 in stock
    ST-ZF240 ZeroFlex 240W Passive PSU
    €133.94
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    • Totally passive 240W PSU
    • Installed inside the chassis
    • Designed for Streacom FC5, FC9 and FC10 chassis
    • 93% efficiency
    More Details
    €133.94
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    28 in stock

    ASUS ROG STRIX 750G Semi-Fanless Modular 750W 80Plus Gold PSU

    3 in stock
    ROG STRIX 750G Semi-Fanless Modular 750W 80Plus Gold PSU
    €131.00
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    • Virtually inaudible ROG thermal solution
    • Semi-fanless with 0dB technology
    • 80PLUS Gold certification
    • Fully Modular cable management
    • NVIDIA SLI Ready and AMD CrossFireX
    More Details
    €131.00
    Add to Basket
    3 in stock

    FSP Hydro PTM Pro 750W Semi-Fanless Modular PSU, 80+ Platinum OEM

    14 in stock
    Hydro PTM Pro 750W Semi-Fanless Modular PSU, 80+ Platinum OEM
    €127.67
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    • Semi-fanless design for silent operation
    • Full Japan-made electrolytic capacitors
    • Massive 10 year warranty
    • Powerful single +12V rail design
    • 80 PLUS Platinum certification
    • Full protections: OCP, OVP, SCP, OPP, OTP, UVP
    More Details
    €127.67
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    14 in stock

    Corsair SF750 750W 80 PLUS Platinum Semi-Fanless SFX PSU

    1 in stock
    SF750 750W 80 PLUS Platinum Semi-Fanless SFX PSU
    €126.34
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    • 80 PLUS Platinum certification (up to 92% efficiency)
    • Multi-GPU support with four PCIe connectors
    • Modular cables for maximum build flexibility
    • Temperature-controlled semi-fanless 92mm fan
    • SFX-to-ATX adapter bracket for usage with larger case sizes
    More Details
    €126.34
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    1 in stock

    be quiet Straight Power 11 CM 750W Modular 80+ Gold PSU

    2 in stock
    Straight Power 11 CM 750W Modular 80+ Gold PSU
    €120.26
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    • Virtually inaudible operation
    • Very quiet SilentWings 3 fan
    • 80PLUS Gold certification
    • Fully Modular cable management
    • NVIDIA SLI Ready and AMD CrossFireX
    More Details
    €120.26
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    2 in stock

    be quiet Straight Power 11 CM 650W Modular 80+ Gold PSU

    5 in stock
    Straight Power 11 CM 650W Modular 80+ Gold PSU
    €111.80
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    • Virtually inaudible operation
    • Very quiet SilentWings 3 fan
    • 80PLUS Gold certification
    • Fully Modular cable management
    • NVIDIA SLI Ready and AMD CrossFireX
    More Details
    €111.80
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    5 in stock

    Streacom ST-NANO160 160W nanoPSU and AC/DC adapter block

    140 in stock
    ST-NANO160 160W nanoPSU and AC/DC adapter block
    €109.43
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    • Very small, can built into 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 low wattage processors
    More Details
    €109.43
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    140 in stock

    FSP Hydro G Pro 650W Semi-Fanless Modular PSU, 80+ Gold

    14 in stock
    Hydro G Pro 650W Semi-Fanless Modular PSU, 80+ Gold
    €96.13
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    • Semi-fanless design for silent operation
    • Full Japan-made electrolytic capacitors
    • Powerful single +12V rail design
    • SLI and Crossfire ready
    • 80PLUS gold certification
    • Full protections: OCP, OVP, SCP, OPP, OTP
    More Details
    €96.13
    Add to Basket
    14 in stock

    Streacom ST-NANO120 120W nanoPSU and AC/DC adapter block

    106 in stock
    ST-NANO120 120W nanoPSU and AC/DC adapter block
    €82.07
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    • Very small, can built into 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 low wattage processors
    More Details
    €82.07
    Add to Basket
    106 in stock

    SilverStone SST-ST45SF v3.0 Strider Ultra-Quiet 450W SFX Power Supply

    3 in stock
    SST-ST45SF v3.0 Strider Ultra-Quiet 450W SFX Power Supply
    €76.94
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    • Extremely quiet 92mm fan
    • Support standard SFX form factor and ATX via included bracket
    • 80 PLUS Bronze level efficiency
    • Single PCI-E 6pin connector support
    • Active PFC
    More Details
    €76.94
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    3 in stock

    ASUS TUF 550B Semi-Fanless 550W 80Plus Bronze PSU

    4 in stock
    TUF 550B Semi-Fanless 550W 80Plus Bronze PSU
    €68.68
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    • 0dB tech at 30% load
    • Military grade certification
    • Protective PCB coating
    • 80PLUS Bronze certification
    • Six year warranty
    More Details
    €68.68
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    4 in stock

    Antec VP700P Plus 700W Quiet Power Supply

    3 in stock
    VP700P Plus 700W Quiet Power Supply
    €64.41
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    • Continuous Power Guaranteed
    • 80 PLUS 200-240V Standard Certified
    • AQ3 - Antec Quality 3 year warranty
    • An advanced low voltage fan control for optimal heat & noise management
    • Full suite of industrial grade protections: UVP/OVP/SCP/OPP/NLO
    More Details
    €64.41
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    3 in stock

    be quiet System Power 9 700W 80+ Bronze PSU

    3 in stock
    System Power 9 700W 80+ Bronze PSU
    €62.60
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    • Rock-solid stability with 2 strong 12V-rails
    • 80 PLUS Bronze efficiency (up to 89%)
    • Temperature-controlled 120mm fan reduces system noise
    • Complete suite of top safety features
    • 3-year manufacturer’s warranty
    More Details
    €62.60
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    3 in stock

    SilverStone SST-ST30SF v2.0 Strider Ultra-Quiet 300W SFX Power Supply

    3 in stock
    SST-ST30SF v2.0 Strider Ultra-Quiet 300W SFX Power Supply
    €61.93
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    • Extremely quiet 92mm fan
    • Support standard SFX form factor and ATX via included bracket
    • 80 PLUS Bronze level efficiency
    • Single PCI-E 6pin connector support
    • Active PFC
    More Details
    €61.93
    Add to Basket
    3 in stock

    Streacom ST-NANO90 90W nanoPSU and AC/DC adapter block

    11 in stock
    ST-NANO90 90W nanoPSU and AC/DC adapter block
    €55.48
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    • Very small, can built into 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 low wattage processors
    More Details
    €55.48
    Add to Basket
    11 in stock

    be quiet Pure Power 11 400W Quiet PSU 80PLUS Gold

    1 in stock
    Pure Power 11 400W Quiet PSU 80PLUS Gold
    €52.72
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    • 12V-rails ensure rock-solid voltage stability for powerful multi-GPU systems
    • 80PLUS certification and up to 91% power conversion efficiency
    • Exceptionally quiet operation features a silence-optimised 120mm be quiet fan
    • Stable operation thanks to DC-to-DC power conversion technology
    • Attractively sleeved cables simplify component installation
    More Details
    €52.72
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    1 in stock

    Antec VP500P Plus 500W Quiet Power Supply

    Coming soon
    VP500P Plus 500W Quiet Power Supply
    €49.11
    • Continuous Power Guaranteed
    • 80 PLUS 200-240V Standard Certified
    • AQ3 - Antec Quality 3 year warranty
    • An advanced low voltage fan control for optimal heat & noise management
    • Full suite of industrial grade protections: UVP/OVP/SCP/OPP/NLO
    More Details
    €49.11
    Coming soon

    be quiet Pure Power 11 300W Quiet PSU, 80PLUS Bronze

    3 in stock
    Pure Power 11 300W Quiet PSU, 80PLUS Bronze
    €47.97
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    • 12V-rails ensure rock-solid voltage stability for powerful multi-GPU systems
    • 80PLUS certification and up to 91% power conversion efficiency
    • Exceptionally quiet operation features a silence-optimised 120mm be quiet fan
    • Stable operation thanks to DC-to-DC power conversion technology
    • Attractively sleeved cables simplify component installation
    More Details
    €47.97
    Add to Basket
    3 in stock

    Gelid Solutions Fourza - Flexible USB Docking Station For Phones and Tablets Save 26%

    13 in stock
    Fourza - Flexible USB Docking Station For Phones and Tablets

    SPECIAL OFFER
    €19.18 (was €25.93)
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    • Tidy method of charging multiple devices at once
    • Non-slip rubber surface
    • Charges up to four devices simultaneously
    • 2.4A per port, 48W total power
    More Details
    €19.18 (was €25.93)
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    13 in stock

    Nanoxia CoolForce 6 Aluminium Cable Clip Save 38%

    6 in stock
    CoolForce 6 Aluminium Cable Clip

    SPECIAL OFFER
    €7.89 (was €12.63)
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    • 100% aluminium cable clips
    • Provides a visually striking cabling solution
    • Available in four different sizes
    • Easy to install
    More Details
    €7.89 (was €12.63)
    Add to Basket
    6 in stock

    Nanoxia CoolForce 4 Aluminium Cable clip Save 38%

    9 in stock
    CoolForce 4 Aluminium Cable clip

    SPECIAL OFFER
    €7.41 (was €11.88)
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    • 100% aluminium cable clips
    • Provides a visually striking cabling solution
    • Available in four different sizes
    • Easy to install
    More Details
    €7.41 (was €11.88)
    Add to Basket
    9 in stock

    Quiet PC Molex IDE to Serial ATA Power Adapter Cable (Single)

    10 in stock
    Molex IDE to Serial ATA Power Adapter Cable (Single)
    €2.94
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    • 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 20cm long
    More Details
    €2.94
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    10 in stock

    Gelid Solutions 24pin Acrylic Cable Holder

    8 in stock
    24pin Acrylic Cable Holder
    €2.76
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    • Easy cable wire fixture
    • Fits all cables with sleeving
    • Transparent color
    More Details
    €2.76
    Add to Basket
    8 in stock

    Gelid Solutions 8pin Acrylic Cable Holder

    20 in stock
    8pin Acrylic Cable Holder
    €2.37
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    • Easy cable wire fixture
    • Fits all cables with sleeving
    • Transparent color
    More Details
    €2.37
    Add to Basket
    20 in stock

    FAQ

    • Do high wattage power supplies cost more to run?

      No - the rated wattage of a power supply refers to the maximum amount of power it can deliver at full load, not how much power it uses. More powerful PSUs will consume around the same amount of power as lower powered power supplies in any given PC system, so your electricity bill will not be higher when using a more powerful power supply!

      The best way to reduce your electricity bill when using your PC is to use a more efficient power supply or make your PC consume less power by removing components which are not needed, such as extra drives and expansion cards, or by choosing a cooler-running processor or graphics card.

    • My brand new power supply doesn’t work! Am I doing something wrong?

      It’s possible that the power supply may be faulty, but here are some simple things to check. Firstly, a power supply will not work if you simply plug it in and flick the switch. The power supply will only turn on if you connect it to a working motherboard and associated items (processor, memory, video card, etc). It is actually the motherboard which tells the power supply when to switch on.

      Secondly (if applicable), check the voltage is set correctly to 115/230 volts depending on what country you are in. Thirdly, if possible it would be good to try the power supply in another PC to see if it works, or try another power supply in your PC to see if that works. You can then tell whether it is the power supply which is faulty or the actual PC itself. If all else fails, please contact us for further support, and/or return details.

    • Why should I buy a whole new PSU when I could just replace the noisy fan in my existing one?

      Virtually all the noise generated by a PC power supply originates from the cooling fan inside it, so simply replacing the fan with a quiet fan may seem an obvious way to go. However, if you are thinking about attempting this operation, please bear the following points in mind:

      • Your existing power supply will be designed to run with a specific amount of airflow in order to adequately cool the components inside and reducing the airflow may lead to overheating and damage to the power supply and/or PC.
      • All PC power supplies contain very high voltages and even with the power disconnected, the voltages stored in the capacitors can be easily enough to kill. It is not recommended to take the cover off any PC power supply for this reason unless you are absolutely confident of your own ability. Because of the grave dangers involved, all PC power supplies by law carry a warning label forbidding removal of the power supply case.
      • There will be no standard PC fan connector inside the power supply to use to connect a replacement fan, and it would probably have to be soldered directly into the PCB inside the power supply, or have a specialist power connector attached. This can be a tricky operation to say the least.

      Please consider the above points very carefully before proceeding with an operation to replace the fan in your existing power supply!

    • What is PFC (Power Factor Correction)?

      If you are interested in being “green” and saving the planet, you might like to read a short explanation of how our power supplies can save energy using Active PFC (Power Factor Correction), not to be confused with Power Conversion Efficiency which is also very good in most of our PSUs. “Power Factor” is a measure of how efficiently electrical power is consumed. Ideally, Power Factor would be 1 (or 100%) and known as unity.

      Unfortunately in the real world, Power Factor is reduced by highly inductive loads down to values of 0.7 (70%) or less. This induction is caused by equipment such as small electric motors, fans, fluorescent lighting ballasts and transformers such as those in PSUs. This is bad news for the electricity generating companies who can impose a surcharge on heavy users if they have a consistently low Power Factor, as more electricity has to be produced to make up the shortfall.

      Power Factor Correction (PFC) is used in some equipment to minimise the inductive component of the electrical current. This helps to reduce the losses in the electrical supply to that equipment. Power Factor Correction capacitors are normally used to reduce induction in an electrical load, which minimises wasted energy and hence improves the efficiency of a company and reduces electricity costs.

      It is not usually practical to reach unity, i.e. Power Factor 1, and it seems that most electricity supply companies accept consumers having a Power Factor as low as 0.94 (94%) without imposing a surcharge. Unfortunately most of the cheap (and not so cheerful) PSUs tend to have a Passive PF as low as 0.75 or 75% which in a large office can lead to a PF surcharge.

      However, the good news is that most of Quiet PC’s PSUs implement a system known as Active PFC which involves some clever electronics. This means that their power factor (PF) can be as high as 0.94 or 94% (at full load), while harmful harmonic frequencies are reduced to well below legal requirements. So by using our products, you can be happy in the knowledge that you are doing your bit to save the planet!

    • How do I know what size of wattage power supply I need?

      The best answer we can give to this question is to go ahead and take an intelligent “guesstimate”! There are no hard and fast rules about what size of power supply any given PC needs as a minimum. Our advice would be that if you are replacing an existing power supply, then consider a new one at least of the same wattage as the old one. In addition, if you wish to build in a “safety margin” to allow for reliable running and possible future upgrades, consider adding 100-200 watts to the rating of your existing unit.

      If you are building a new PC, most customers now buy a power supply rated in the region of 500-800 watts depending primarily on the performance level of their graphics card(s) and number of drives to be installed. But in any event if you are unsure about which power supply would be best for your PC then please do contact us by phone or email and we will be happy to give you a specific recommendation based on your budget.

    • My new PSU came with a 24-pin connector but my motherboard needs 20 pins! Do I need an adaptor cable?

      We receive many customer enquiries about this. In fact, most of the 24-pin compatible power supplies we sell come with special motherboard connectors which can be converted to 20-pins with no additional conversion cables. All you need to do is look carefully at the connector and you will see that the end four pins can be slid off, turning the connector into a 20-pin compatible one (see below) - easy when you know how!

      Image showing how to change a power supply’s 24-pin motherboard connector into a 20-pin connector by unclipping the end four-pin block
      Image showing how to change a power supply’s 24-pin motherboard connector into a 20-pin connector by unclipping the end four-pin block
    • What do the PSU safety protection abbreviations mean?

      There are many possible safety protections a PSU can have. Below is a list of what each abbreviation means. Please note, not all PSUs have all safety protections.

      More information on certification marks can be found here.

    Make some noise for Quiet PC.Com !!

    Quiet PC are just amazing. They have high quality, affordable products. Whats more they have them in stock !! Their shipping charges are fine and all my orders to date have arrived the next day. Why can't all companies be like these guys? Cheers A very happy customer
    (Review via Trustpilot)