be quiet!
be quiet! Pure Power L8 730W '80 Plus Bronze' Modular Power Supply - With 120mm Silent Wing Fan Buil

be quiet!
Pure Power L8 730W '80 Plus Bronze' Modular Power Supply - With 120mm Silent Wing Fan Buil

  • The L8-730W offers an efficient and economical operation
  • achieving an 80PLUS Bronze certification with an efficiency of up to 88%.
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Stock Code: CA-055-BQ

EAN: 4260052182512

MPN: BN183

Manufacturer: be quiet!

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Product information:

Pure Power L8 730W '80 Plus Bronze' Modular Power Supply - With 120mm Silent Wing Fan Buil

The Pure Power L8 series proves that true affordability means peerless dependability and best-in-class features — not cutting corners and settling for less. Whether you are assembling a very quiet higher-powered system, building a better multimedia or dual-GPU gaming system, or upgrading an existing PC, your build will benefit from the premium features be quiet's German team has designed into this PSU.


- Silence-optimized 120mm be quiet! fan with durable Rifle-Bearing-Technology
- Certified 80PLUS Bronze efficiency (up to 88%)
- Modular Cable Management with sleeved cables for reduced clutter and better airflow. All-in-one cable with SATA, HDD and FDD connector
- Supports multi-GPU systems (400-700W)
- Meets energy-saving requirements of Intel C6/C7, ErP 2013 and Energy Star 5.2 guidelines.
- Ready for Intel ® Haswell TM platform
- Stronger +12V rails increase power stability
- Full suite of top safety protections defends against over-currents, over- and under-voltages, short circuits, overheating and overloads, thus safeguarding valuable components
- German product conception, design and quality control
- Three year warranty


- Continuous power (W): 730
- Model: BN183
- Voltage / Frequency: 100–240Vac, 50–60Hz
- ATX 12V 2.31 / EPS 12V 2.92: Yes
- Dimensions (LxWxH): 160 x 150 x 86
- be quiet! fan (mm): 120 Silent Wings
- Noise level (dbA) at 0 - 100% load: 15-29
- Efficiency (%) at 230V: up to 88
- 12V Rails: 2
- PFC: Active
- Certifications: 80Plus Bronze, AMD CrossFireX
- Energy Star 5.0 Compatible: Yes
- ErP2013 ready: Yes


- 1 x 20+4-Pin ATX12V/EPS12V
- 1 x 4+4-Pin ATX12V/EPS12V
- 2 x 6+2-Pin-PCIe
- 2 x 6-Pin-PCIe
- 5 x SATA
- 4 x 4-Pin-Molex
- 1 x Floppy
- Warranty: 3yr

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Customer review

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Average customer rating

(from 3 customer reviews)
All Time (3)

Early signs promising

Been researching psu's a lot for my new haswell build (yes this is compatible,they announced this on their website) narrowed the choices to nzxt hale82 (put off by lots of negative reviews on fan qaulity) corsair cx750w modular (coil whine) and this! So glad I went with this. Super quiet and well built, cables are a little short but perfect for me in a bitfenix prodigy case. And it's true the braiding leaves a lot to be desired but it's not a deal breaker for me, sleeving is so cheap it can be redone to your own colour scheme if you wish,personally I'm gonna leave mine as most of it will be hidden. Best thing is the silence it's important to me having a previous loud gaming system. It's silent up to 50% load and only just audible at 75% load.
Overall this is a good psu,only time will tell how reliable it is. My budget didn't run to a seasonic or silverstone and this was the best alternative which I don't regret.


Not too impressed.

Good price, and it looks cool, but its the cables that really let it down. Theyre just not conducive to building a tidy system. Maybe im expecting a bit too much out of something thats not fully modular, but the fact that the cables a pretty short really doesnt help, either.

Ill be shelling out the extra cash for some bitfenix extensions at some point, anyway, but if i had the choice again, id spend a bit more and go for a Corsair HX.

Pete 2012-07-15


Very good PSU its very quiet and powers my rig well.

Only negative thing is the cables are a bit short. Other than that great!

Ben 2011-12-29

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