Site updated: 23.2.19

I have ordered two PCs from Quiet PC in…

I have ordered two PCs from Quiet PC in the last 3 years and found their build quality and finish to be excellent. They are... (26th November 2018 via Trustpilot)
Pure Power L8 500W 80+ Bronze PSU, BN223
(21 customer ratings / 2 reviews)
Pure Power L8 400W 80+ Bronze PSU, BN222
(22 customer ratings / 1 review)

Be Quiet Pure Power L8 Power Supplies

The be quiet's Pure Power L8 PSUs offer a plethora of features you would only expect to see on more expensive power supplies.

The Pure Power L8 power supplies from be quiet offer true affordability, peerless dependability and best-in-class features without cutting corners or settling for less. Pure Power L8 feature rock-solid voltages, strong reliability, high efficiency and an exceptional quiet fan. Offering the best combination of features, performance and quality in the class, all at a very reasonable price.


  1. Exceptionally quiet PSU from be quiet
  2. Up to 88% efficiency; complies with 80PLUS Bronze certification
  3. Dual +12V output circuits
  4. Great value for money

As mentioned the PSUs off exceptionally quiet operation achieved through an array of careful optimisations, including the use of a custom designed quiet-orientated 120mm Fan. The PSUs offer up to 500W of continuous power which provides power for those times your PC really needs. All PSUs have 80PLUS Bronze certification and up to 88% power conversion efficiency. They also support AMD CrossfireX and NVIDIA Hybrid readiness allow you to build powerful Multi-GPU systems with confidence.

Specificationsbe quiet BN222be quiet BN223
Power400W 500W
Form factorATX 2.4, EPS 2.92
Dimensions (LxWxH)150 x 150 x 86mm
Noise level at 20 - 100% load13.6 - 23.2 dBA 13.3 - 25.1 dBA
Efficiency at 230Vup to 88%
Active PFCYes
CertificationOCP, OVP, UVP, SCP, OPP, OTP, 80Plus Bronze
Energy Star 5.2 compatibleYes
ErP2013 readyYes
Lifetime of fan at 25°C100,000 hours
ATX-Mainboard (20+4-pin)Yes
PCI-Express (6+2-pin)2
P8-/P4-connector1x P4+4
SATA Connectors4 5
Molex Connectors3 4
Floppy Connectors1
+3.3V maximum output current24 A
+5V maximum output current15 A
+12V1 maximum output current22 A 28 A
+12V2 maximum output current20 A
Combined 12V output current30 A 38 A
Total combined power400 watt 500 watt
Warranty24 months
EAN barcode4260052183267 4260052183274

Customer Reviews

be quiet BN223
be quiet BN222

Pure Power L8 500W PSU, BN223


I bought this unit to replace my aging 350W PSU that was starting to make too much noise after an hour or two due to the heat, a sign of a failing power supply and the odd BSOD.

I received the be quiet PSU the next day and installed it, plenty of cabling for PCI-E and CPU and drives, good quality cables, even screws, tie backs, and a power cord with the correct fuse was in the box.

After the initial power up of all the fans, the PSU settled to a surprisingly low noise, I could hear the other fans in the case working, the PSU is very quiet, after hours of use the noise level is bearable and lower than any other I have used before, stability is second to none, my PC seemed more responsive and even slightly quicker than before, plenty of stable power to all the components.

Thank you, the customer service was excellent, I received a confirmation of the parcels dispatch and a kindly response to a support question, my PC is enjoyable, usable, and reliable once more, I will certainly order from quiet PC again.

Much quieter PC.


Bought to replace a cheep and noisy budget original. Cabling is heavier than the original and took some time to route comfortably but the case is fairly shallow back to front. Very happy with the low noise level.

This thing is amazing


My old PC, which has been noisy since I first got it in 2006 went from sounding like a jet engine to a very gentle breeze and that's down to the remaining CPU fan - the PSU seems completely silent. Really impressed.


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Brawby Grange
YO17 6PZ
United Kingdom

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