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Stronger 700W Ultra-Quiet Plug-in PSU
Discontinued
Stronger 500W Ultra-Quiet Plug-in PSU
Discontinued
Stronger 600W Ultra-Quiet Plug-in PSU
Discontinued
More variations available Show

Scythe Stronger Ultra-Quiet Plug-in PSU Series

Built in fan controller, modular cables and a very quiet 140mm fan are just some of the great features on the Stronger PSUs.

The new Stronger power supplies from Scythe are available in three different wattages, namely the 500, 600 and 700 watt models. They feature the very quiet Scythe Slip Stream 140mm fan which is designed to provide high airflow at low fan speed. Scythe also incorporated a PSU fan grill to further optimise the airflow which allows the fan to stay spinning slower for longer. Furthermore, the Stronger PSU series is equipped with an Intelligent Fan Cable Connector. This allows for up to two external fans to be controlled by the PSU.

Features

  1. Equipped with very quiet Slip Stream 140mm fan
  2. Intelligent fan cable connector
  3. High airflow design
  4. Energy efficient - 80PLUS certified
  5. Convenient cable management - modular
  6. ATX 12V Version 2.3, EPS 12V Standard

Equipped with Slip Stream 140mm fan

The Stronger power supplies incorporate a special Slip Stream 140mm fan. What makes this fan special is the fact that mounting holes are the same as a 120mm fan, but the blades are that of a 140mm fan. Larger blades mean more airflow, this allows the Stronger PSUs to remain quiet even under high load.

Image showing the fan speed and noise levels at a given load
Image showing the fan speed and noise levels at a given load

Intelligent Fan Cable Connector

Built into the PSU are two fan headers. These allow for two fans to be controlled by the PSU. As the heat rises in the PSU the fan speed of the connected fan(s) will also increase. This provides more airflow through the system and therefore better cooling.

80PLUS Certified

These Power Supply Units are 80PLUS certified to supply high power efficiency of above 80% at 20, 50 and 100% load.

Convenient Cable Management

Just like most modern PSUs, the Stronger power supplies are modular which means that you only need to use the cables required to power the system. This cuts down on the amount of redundant cables inside the case. The benefit of this is increased airflow and lower temperatures.

Show specifications and reviews for:
SpecificationsStronger 500WStronger 600WStronger 700W
Model NumberSPSN-050P SPSN-060P SPSN-070P
+3.3V max load24 A 24 A 24 A
+5V max load20 A 24 A 30 A
+12V1 max load20 A 35 A 47 A
+12V2 max load20 A 25 A 25 A
+12V Combined360W 500W 600W
Combined maximum output +3.3V / +5V130 W 140 W 170 W
-12V max load0.3 A 0.3 A 0.5 A
+5VSB maximum standby current2.5 A 2.5 A 3.0 A
Dimensions160L x 150W x 86H mm (including fan) 160L x 150W x 86H mm (including fan) 160L x 150W x 86H mm (including fan)
Cable Length45 – 55 cm Mesh-Type cables 45 – 55 cm Mesh-Type cables 45 – 55 cm Mesh-Type cables
Efficiency80PLUS Certified 80PLUS Certified 80PLUS Certified
Noise Level9.6 - 23.2 dBA 10.1 - 24.2 dBA 10.5 - 27.9 dBA
FanScythe Slip Stream 140mm, 1200 RPM Max Scythe Slip Stream 140mm, 1250 RPM Max Scythe Slip Stream 140mm, 1350 RPM Max
SafetyCE, ROHS CE, ROHS CE, ROHS
ProtectionOvercurrent Protection (OCP), Overvoltage Protection (UVP), Overpower (Overload) Protection (OPP), Short Circuit Protection (SCP), Undervoltage Protection (UVP), Overtemperature Protection (OTP) Overcurrent Protection (OCP), Overvoltage Protection (UVP), Overpower (Overload) Protection (OPP), Short Circuit Protection (SCP), Undervoltage Protection (UVP), Overtemperature Protection (OTP) Overcurrent Protection (OCP), Overvoltage Protection (UVP), Overpower (Overload) Protection (OPP), Short Circuit Protection (SCP), Undervoltage Protection (UVP), Overtemperature Protection (OTP)
Number of 4-pin Molex connectors6 6 6
SATA connectors8 8 10
Number of floppy drive connectors2 2 2
Fan Connectors2 2 2
ATX12V/ESP12V (4/8-pin) supportYes Yes Yes
20/24-pin ATX connectorYes Yes Yes
PCI-E supportTwo 6/8-pin Two 6/8-pin Four 6/8-pin
ATX12V version2.3, EPS 12V 2.3, EPS 12V 2.3, EPS 12V
Weight2.2 Kg 2.2 Kg 2.2 Kg
Warranty36 months 36 months 36 months
EAN barcode4571225046204 4571225046211 4571225046228
SpecificationsStronger 500WStronger 600WStronger 700W
Model NumberSPSN-050P SPSN-060P SPSN-070P
+3.3V max load24 A
+5V max load20 A 24 A 30 A
+12V1 max load20 A 35 A 47 A
+12V2 max load20 A 25 A
+12V Combined360W 500W 600W
Combined maximum output +3.3V / +5V130 W 140 W 170 W
-12V max load0.3 A 0.5 A
+5VSB maximum standby current2.5 A 3.0 A
Dimensions160L x 150W x 86H mm (including fan)
Cable Length45 – 55 cm Mesh-Type cables
Efficiency80PLUS Certified
Noise Level9.6 - 23.2 dBA 10.1 - 24.2 dBA 10.5 - 27.9 dBA
FanScythe Slip Stream 140mm, 1200 RPM Max Scythe Slip Stream 140mm, 1250 RPM Max Scythe Slip Stream 140mm, 1350 RPM Max
SafetyCE, ROHS
ProtectionOvercurrent Protection (OCP), Overvoltage Protection (UVP), Overpower (Overload) Protection (OPP), Short Circuit Protection (SCP), Undervoltage Protection (UVP), Overtemperature Protection (OTP)
Number of 4-pin Molex connectors6
SATA connectors8 10
Number of floppy drive connectors2
Fan Connectors2
ATX12V/ESP12V (4/8-pin) supportYes
20/24-pin ATX connectorYes
PCI-E supportTwo 6/8-pin Four 6/8-pin
ATX12V version2.3, EPS 12V
Weight2.2 Kg
Warranty36 months
EAN barcode4571225046204 4571225046211 4571225046228

Customer Reviews

Stronger 700W
Stronger 500W
Stronger 600W

We haven't received any reviews of this product yet.

Great PSU

,

Again, great service and delivery from QUIET PC. On opening PSU from package I was very pleased with the weight of the PSU, this denotes quality. Many connections BUT I will only require a small amount due to this being put into my HTPC build. Will give FULL REVIEW when fully up and running with regards to quietness etc..

A good choice.

,

I got one of the 500W units to upgrade my HP Pavilion Media Center PC which originally only had a 300W PSU. (I needed more power for a new graphics card). The new PSU fitted perfectly in the casing (as you would expect) and the cabling was mostly straightforward.

The PC has SATA drives except for a removable USB drive that takes an old ATA (4-pin) power cable. The SATA connections were easy but the ATA 4-pin connector was difficult to fit… it was a tighter fit than the cable of the original PSU and the pins in the new cable looked slightly out of alignment… I tried all the 4-pin connectors on both of the supplied cables, and they were all tight and had poorly aligned pins. I did eventually manage to connect the ATA power cable, thankfully.

The motherboard connections were fine. The modular cabling is nice, since it reduces clutter that would otherwise inhibit air flow. Other than that, I am happy with the new PSU. It’s quiet and runs quite a lot cooler than the old unit.

Quiet

,

This is one quiet psu comes with all the different connectors I needed easy to fit and most of all silent.

SCYTHE CUTS DB SHOCK

,

Originally bought a Rasurbo DLP430w in MAY 09. Alas, that unit developed coil whine and voltage drop - this a step up in price but the modular design was of interest. Suffice to say 1 - no gasket to cover the cutaway where the two main wire bundles extrude - both covered in fine black mesh - for ATX supplies only. 2 - All Molex/SATA/PCI and intelligent fan controller cables are separate, and you plug in the ones you want - easy to do. You still need to cable tie it all up and away from the airflow, but each connector bundle is covered in the same mesh, and all looks/feels good quality. The manual is poor, but if you are fitting your own PSU you should have a grasp of what goes where. The unit is really much quieter than the Rasurbo - due to restrictions in my case I have one case fan on intelligent control. Marvellously low, gentle db hum. This PSU does what it says on the tin. Online reviews have raised issues over high standby consumption, so beware if that is an issue to you.

Product Resources

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.

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