From the manufacturer

World Class Quiet and Efficiency

Provides virtually inaudible operation


Silent Wings 3 Fan The high-end Silent Wings 3 fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimised fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption.	Funnel-Shaped Fan Opening The fan inlet of the Straight Power 11 is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.	Wire-Free Design Inside the PSU An absolute innovation: The Straight Power 11 is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum.

Compatibility for the systems of tomorrow


Fully Modular Cable Management Thanks to the fully modular cable management, cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.	80 PLUS Gold Certified Straight Power 11 is certified with 80 PLUS Gold efficiency, reaching up to 93%. This gives less power consumption and a cooler and quieter operation. Truly a benefit for any system.	High Class Technologies The use of LLC and Synchronous Rectifier (SR) provides very stable operation and enhanced voltage regulation. The PSU is equipped with DC-to-DC conversion for tight voltage regulation even under heavy cross-loading conditions. This ensures reliable operation with the next generation of processors and graphics cards.

A testament to high quality


Japanese 105° Capacitors Only the best components are used in Straight Power 11 450W. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C, ensuring stability, reliability and a long operating life

General Data

Model	Straight Power 11 750W
Continuous power (W)	750
Peak power (W)	820
Form factor ATX 12V	Version 2.4
Form factor EPS 12V	Version 2.92
Modular Cable management	Yes
Topology	LLC + SR + DC/DC
Wire-free design (DC-side)	Yes

Voltage (Vac)	100 - 240
Frequency (Hz)	50 - 60
Input current (A)	10 / 5
PFC	active
Power factor at 100% load	>0.99
Compliant to Intel C6/C7	Yes
Power consumption standby (W)	<0.12
Operating temperature (°C)	Up to 40

Compare with similar items

	This item be quiet! BN283 Straight Power 11 750W ATX Black power supply unit - power supply units (750 W, 100-240, 820 W, 50-60, Active, 150 W),gold,BN283	Recommendations MSI MAG A750GL PCIE5 Power Supply Unit, 750W, 80 Plus Gold, Fully Modular, ATX 3.0, PCIe 5.0 GPU Support, Black Flat Cables, 7 Year Warranty	dummy MSI MAG A850GL PCIE5 Power Supply Unit, 850W, 80 Plus Gold, Fully Modular, ATX 3.0, PCIe 5.0 GPU Support, Black Flat Cables, 7 Year Warranty	dummy GIGABYTE UD850GM Power Supply Unit - 850W, 80 PLUS Gold Certified, Fully Modular, Japanese Capacitors, ATX 3.0, UK plug	dummy NZXT C850 PSU - PA-8G1BB-UK - 850 Watt PSU - 80+ Gold Certified - Fully Modular - Sleeved Cables - ATX Gaming Power Supply	dummy Corsair RM750e (2023) Fully Modular Low-Noise ATX Power Supply - ATX 3.0 & PCIe 5.0 Compliant - 105°C-Rated Capacitors - 80 PLUS Gold Efficiency - Modern Standby Support - Black
	Buying options	Try again! Details Added to Basket	Try again! Details Added to Basket	Try again! Details Added to Basket	Try again! Details Added to Basket	Try again! Details Added to Basket
Price	—	-20% £66.66 RRP: £83.32	-25% £74.99 RRP: £99.99	-18% £74.74 RRP: £91.66	£108.32	-32% £74.15 RRP: £108.25
Delivery	—	—	—	—	—	—
Customer Ratings	4.54,025	4.6852	4.6852	4.5103	4.5207	4.62,317
Stability	4.5	4.5	4.5	5.0	5.0	4.6
Noise Level	4.2	4.6	4.6	4.3	4.4	4.2
Easy to install	4.1	4.6	4.6	4.0	4.4	4.6
Value for money	4.5	4.7	4.7	—	5.0	4.2
Sold by	—	Amazon	Amazon	Amazon	Amazon	Amazon
power supply design	Full Modular	Full Modular	Full Modular	Full Modular	Full Modular	Full Modular
connector type	atx,pci-express	atx,pcie	PCI Express, ATX	ATX	ATX	ATX
form factor	ATX	ATX	ATX	ATX	ATX	ATX
cooling method	Air	Air	Air	Air	Air	Air
system bus connector	20+4 Pin	16 Pin	16 Pin	4 Pin	—	8 Pin
fan count	1	1	1	1	—	1
wattage	750 watts	750 watts	850 watts	850 watts	850 watts	750 watts

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Product information

Technical Details

Brand

‎be quiet!

Product Dimensions

‎17 x 15 x 8.6 cm; 1.78 kg

Batteries

‎1 Lithium Ion batteries required.

Item model number

‎BN283

Manufacturer

‎Be Quiet!

Series

‎Cable Management

Colour

‎Black

Form Factor

‎ATX

Processor Count

‎4

Voltage

‎220 Volts

Wattage

‎750 watts

Are Batteries Included

‎No

Lithium Battery Packaging

‎Batteries only

Lithium Battery Weight

‎0.19 g

Number Of Lithium Ion Cells

‎1

Number of Lithium Metal Cells

‎1

Item Weight

‎1.78 kg

Guaranteed software updates until

‎unknown

Additional Information

ASIN

B078X1KZ8N

Customer Reviews

4.5 4,025 ratings

4.5 out of 5 stars

Best Sellers Rank

51,556 in Computers & Accessories (See Top 100 in Computers & Accessories)
351 in Power Supplies

Date First Available

6 Jan. 2018

Warranty & Support

Amazon.com Return Policy:Regardless of your statutory right of withdrawal, you enjoy a 30-day right of return for many products. For exceptions and conditions, see Return details.

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What's in the box?

PSU

Product guides and documents

User Manual (PDF)

Customer reviews

4,025 global ratings

How customer reviews and ratings work

Customers say

Customers like the quality, modularity, performance and ease of installation of the system power device. For example, they mention it's a great product, has plenty of cables for any need and that it works well. Some appreciate the noise level. That said, some complain that it didn't come with a UK plug and that the supplied cables have been overlooked.

AI-generated from the text of customer reviews

Select to learn more

Noise Quality Modularity Ease of installation Performance Plug Cables Durability

33 customers mention ‘Noise’29 positive4 negative

Customers like the noise level of the system power device. They say it's very quiet, and is inaudible under load. Some say it was dead silent for about a month.

"...PSU shroud in a BeQuiet Dark Base Pro 900 rev 2 case, and I can't really hear any noise from it at all when it's in operation." Read more

"...My PC is now back in action and is still quieter than a mouse! A really great piece of kit." Read more

"Does what it says on the tin - build in cooling and runs silent as well...." Read more

"...It's very quiet, well made, and powers my high-draw set up with no drama...." Read more

31 customers mention ‘Quality’31 positive0 negative

Customers are satisfied with the quality of the system power device. They mention that it's a good product, very good, and impressed. They also appreciate the modular cabling system and the top quality braided cables. Overall, most are happy with the reliability and quietness of the power supply.

"I'm very happy with this product. It produces power, it is very quiet...." Read more

"Everything about this unit shouts quality. It's all just perfect - from the packaging, to the cabling - and of course the box-of-tricks itself...." Read more

"...It's very quiet, well made, and powers my high-draw set up with no drama...." Read more

"Great PSU; quiet, powerful and easy enough to install but doesn't come with a UK power plug, only the European two-pin, effectively making the..." Read more

8 customers mention ‘Modularity’8 positive0 negative

Customers appreciate the modularity of the system power device. They mention that it has plenty of cable options, including a solid p8 or a 4-4 split and 3 VGA cables. They also appreciate the fully modular design, which makes cable management a breeze. Customers also mention that the connections are better and that a large selection of stylish braided power cables are supplied to cover every eventuality.

"...There are a large selection of stylish braided power cables supplied to cover every eventuality, including cables for dual graphics cards...." Read more

"...Modular cables all included as new make cable management an absolute breeze...." Read more

"...Replaced it with this and now my PC is dead silent! Plenty of modular cable options including a solid p8 or a 4-4 split and 3 VGA cables as well as..." Read more

"...hardly any noise at all and was easy enough to fit due to the modular cable design...." Read more

6 customers mention ‘Ease of installation’6 positive0 negative

Customers find the installation of the system power device to be easy. They say it's fully modular, making it easy to route your cables tidily.

"...The modular nature of the supply makes it easy to route your cables tidily...." Read more

"Great PSU; quiet, powerful and easy enough to install but doesn't come with a UK power plug, only the European two-pin, effectively making the..." Read more

"...sure I had the correct fuse (3amp) for the cable, the install wasn't overly complicated, I had to remove my old cables as the input for the module..." Read more

"Easy to install. So quiet I cannot hear it. Modular so no mess in case. Powerful. Rated as A tier in PSU tier list. What more could you want...." Read more

5 customers mention ‘Performance’5 positive0 negative

Customers are satisfied with the performance of the system power device. For example, they mention it works well, is rock solid, and is perfect for their needs.

"Everything about this unit shouts quality. It's all just perfect - from the packaging, to the cabling - and of course the box-of-tricks itself...." Read more

"This CPU is just perfect. It is rock solid. Plenty of cables for any need. Whisper quiet. You won't even know it's on at all...." Read more

"...can be a little bit confusing figuring out what cable goes where but works well once it’s all setup." Read more

"I fix in my HP xw6600. Work perfect for the Tesla and Quadro NVidia.Thank you for this.Great product and Great Company. Thank you" Read more

5 customers mention ‘Plug’0 positive5 negative

Customers are dissatisfied with the plug of the system power device. They mention that it didn't come with a UK plug, and that the power cable for the motherboard came loose. Some customers also say that the supplied cables have been overlooked.

"...The only other issue was the power cable for the motherboard, which came loose during install, I assume this was my fault although I thought I..." Read more

"DIdn't come with a UK plug with is a legal requirement in the UK." Read more

"...n't worth it unless you're going for customer cable as supplied cables have been overlooked with their purpose with the prime example that the S-ATA..." Read more

"Could not get it to work, due to it coming with incorrect plug. I am not happy. Advise order a different make." Read more

3 customers mention ‘Cables’0 positive3 negative

Customers are dissatisfied with the cables that are provided with the system power device. They mention that the SATA power cables are inflexible, thick, and hard to bend into place.

"...The cables are also quite thick for some cases so double check your case has enough wiggle room before purchase." Read more

"Did not come with a UK lead and cables are extremely hard to bend into place (especially the CPU connector)Apart from that it’s decent" Read more

"...and yes it is pretty quiet.Supplied SATA power cables are a bit inflexible meaning it's difficult to use more than two on a run of..." Read more

3 customers mention ‘Durability’0 positive3 negative

Customers are dissatisfied with the durability of the system power device. Some mention that it broke after 6 months, while others say it died without any real reason.

"Broken after 6 months, seller refuses to repair in warranty (Ebuyer UK Limited) and refers to manufacturer, which is in Germany..." Read more

"...Switched off PC normally and then it wond't power-up again. This happened around 7 months after PC was built. Replacement power supply on the way." Read more

"Not even 3 months and the power supply dies without no real reason...." Read more

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Top reviews from United Kingdom

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akircher

So quiet I can't hear it running.

Reviewed in the United Kingdom on 11 September 2019

Style Name: Straight Power 11 650WVerified Purchase

I'm very happy with this product. It produces power, it is very quiet.

There are a large selection of stylish braided power cables supplied to cover every eventuality, including cables for dual graphics cards.

The modular nature of the supply makes it easy to route your cables tidily.

I have installed it under the PSU shroud in a BeQuiet Dark Base Pro 900 rev 2 case, and I can't really hear any noise from it at all when it's in operation.

Helpful

John Hayes

Still quieter than a mouse

Reviewed in the United Kingdom on 1 August 2019

Style Name: Straight Power 11 650WVerified Purchase

Everything about this unit shouts quality. It's all just perfect - from the packaging, to the cabling - and of course the box-of-tricks itself. The unit was purchased to replace an almost identical one that did excellent service 24 hours a day for nearly eight years. The socket arrangement on the new PSU is slightly different, but I was advised to replace all the cables anyway. Threading them through the confines of the case while being careful not to damage anything was the only slightly tricky part of the job. My PC is now back in action and is still quieter than a mouse! A really great piece of kit.

5 people found this helpful

Helpful

Mr. M

Good PSU, good seller.

Reviewed in the United Kingdom on 10 July 2020

Style Name: Straight Power 11 750WVerified Purchase

Does what it says on the tin - build in cooling and runs silent as well. Modular cables all included as new make cable management an absolute breeze.

5 stars for the seller too - immediately replied to my email when the unit was dispatched behind schedule (although it arrived ahead of time so no issues there). Arrived via tracked UPS delivery.

Weirdly it came with both a US and a UK power cable, but that’s not really a complaint, just an observation.

Would buy from this seller again.

Reviewed in the United Kingdom on 3 March 2022

Style Name: Straight Power 11 850WVerified Purchase

Not too much to say here, I've used Bequiet kit for several years now and this is another excellent offering. It's very quiet, well made, and powers my high-draw set up with no drama. PSU's are rather like referees, in that with the really good ones you forget they're even there.

Helpful

G

Great but UK buyers beware

Reviewed in the United Kingdom on 24 October 2022

Style Name: Straight Power 11 850WVerified Purchase

Great PSU; quiet, powerful and easy enough to install but doesn't come with a UK power plug, only the European two-pin, effectively making the product useless in the UK unless you have a spare cable!

Reviewed in the United Kingdom on 4 March 2020

Style Name: Straight Power 11 750WVerified Purchase

If you want a nice and quiet PSU this is worth considering. My new build used an old PSU I had lying around but where as the rest of the PC was nice and quiet, the PSU sounded like a jet engine compared. On e I put in the Be Quiet the difference was night and day. A max db of around 45 from the computer whilst gaming so I'm happy.

Reviewed in the United Kingdom on 27 March 2024

Style Name: Straight Power 11 850WVerified Purchase

Spent a lot of money on a power supply and when it arrives it has clearly been opened before and returned. I rebuilt my PC with this power supply and it upon power on the fan noise was unbearable, nothing quiet about it. Very shady of Scan selling their returns on Amazon to customers who probably don't know any better. Avoid

2 people found this helpful

Helpful

Bruce Hodge

Just what I needed.

Reviewed in the United Kingdom on 10 July 2019

Style Name: Straight Power 11 650WVerified Purchase

I needed to replace an old XFX XTR power supply that was quite noisy under load. I had read good things about Be quiet! as a company and they share my goals, as in I like my PC to be as silent as possible hence the Noctua CPU cooler and fans inside a Nanoxia Deep Silence case.

It turned out to be the perfect PS - designed in Germany and just faultless in execution from packaging to PS finish all beautifully done. The braided cables were top quality too.

And the best thing is that I can't even hear that my PC is on now - pure bliss.

One person found this helpful

Helpful

Top reviews from other countries

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Frederick Demey

Faulty and opened package

Reviewed in the Netherlands on 6 May 2024

Style Name: Straight Power 11 650WVerified Purchase

Power supply doesn't work.
On opening the box, I noticed the sticker seal had been broken.
There was no power cable, no manual, no bubblewrapping and the cables had been plugged into the power supply already.

The person or company who sold it must have know it was faulty.

Lennox

Zuverlässige Stromversorgung für anspruchsvolle PC-Systeme!

Reviewed in Germany on 16 April 2024

Style Name: Straight Power 11 750WVerified Purchase

Als PC-Enthusiast, der großen Wert auf leistungsstarke und zuverlässige Hardware legt, war ich auf der Suche nach einem hochwertigen Netzteil, das meine Bedürfnisse erfüllt. Das be quiet! Straight Power 11 750W hat mich von Anfang an beeindruckt und bewiesen, dass es mehr ist als nur ein Netzteil - es ist die perfekte Lösung für anspruchsvolle PC-Systeme.

Die Leistung dieses Netzteils ist einfach beeindruckend. Mit einer Nennleistung von 750 Watt bietet es mehr als genug Power, um selbst die leistungshungrigsten Komponenten zu versorgen. Egal, ob es sich um High-End-Grafikkarten, Prozessoren oder Festplatten handelt, das Straight Power 11 stellt sicher, dass mein System stets stabil und zuverlässig läuft.

Das 80Plus Gold-Zertifikat garantiert nicht nur eine hohe Energieeffizienz, sondern auch eine geringere Wärmeentwicklung und damit eine längere Lebensdauer der Komponenten. Darüber hinaus ermöglicht das intelligente Kabelmanagement eine saubere und ordentliche Verkabelung meines Systems, was nicht nur die Luftzirkulation verbessert, sondern auch den Gesamteindruck meines Builds aufwertet.

Ein weiterer Pluspunkt ist die bemerkenswerte Geräuschlosigkeit dieses Netzteils. Selbst unter Volllast bleibt es nahezu unhörbar, was besonders bei leisen Arbeitsumgebungen oder beim Einsatz in Wohnräumen von Vorteil ist.

Insgesamt kann ich das be quiet! Straight Power 11 750W jedem PC-Bastler oder Gamer uneingeschränkt empfehlen, der auf der Suche nach einer zuverlässigen und leistungsstarken Stromversorgung für sein System ist. Mit seiner erstklassigen Leistung, Effizienz und Geräuscharmut hat es meine Erwartungen übertroffen und ist zu einem unverzichtbaren Bestandteil meines Setups geworden.

One person found this helpful

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Dennis

Leise / was sonst

Reviewed in Germany on 8 February 2024

Style Name: Straight Power 11 1000WVerified Purchase

Macht was es soll + Super Leise 👍
Definitiv sein Geld wert.

Werden beim PC-Bau in Zukunft meine Standard Netzteile die ich verbauen werden, wenn nichts anderes Gewünscht wird.

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Tryo

Be-quiet, impecable comme d'hab

Reviewed in France on 14 December 2023

Style Name: Straight Power 11 750WVerified Purchase

Acheter car ma nouvelle carte graphique était plus gourmande que l'ancienne (3060 12Go->4070 12Go). Rien a redire la qualité est toujours au rendez-vous

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Pit

Silenzioso e buona efficenza.

Reviewed in Italy on 30 July 2023

Style Name: Straight Power 11 750WVerified Purchase

Preso per una scheda grafica nuova, il vecchio BeQuiet da 550Watt che avevo funzionava ancora senza problemi solo che qualche volta dava un sibilo/ronzio strano e data l'eta' di 7-8 anni l'ho cambiato con questo 750W sempre della BeQuiet. Montato senza problemi e comodissimo il sistema modulare dei cavi , si collegano solo i cavi che servono, cosi l'interno del case e' bello ordinato. Che posso scrivere di piu...fin qui ottimo prodotto e silenzioso.

One person found this helpful

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be quiet! BN283 Straight Power 11 750W ATX Black power supply unit - power supply units (750 W, 100-240, 820 W, 50-60, Active, 150 W),gold,BN283

About this item

Brand in this category on Amazon

From the manufacturer

World Class Quiet and Efficiency

Provides virtually inaudible operation

Silent Wings 3 Fan

Funnel-Shaped Fan Opening

Wire-Free Design Inside the PSU

Compatibility for the systems of tomorrow

Fully Modular Cable Management

80 PLUS Gold Certified

High Class Technologies

A testament to high quality

Japanese 105° Capacitors

General Data

Compare with similar items

Looking for specific info?

Product information

Technical Details

Additional Information

Warranty & Support

Feedback

What's in the box?

Product guides and documents

Brands in this category on Amazon

Customer reviews

Customers say

Top reviews from United Kingdom

There was a problem filtering reviews right now. Please try again later.

Top reviews from other countries

Model name	Cable Management
Brand	be quiet!
Compatible devices	Personal Computer
Connector type	atx,pci-express
Output wattage	750
Form factor	ATX
Wattage	750 watts
Cooling method	Air
Item dimensions L x W x H	17 x 15 x 8.6 centimetres
Item weight	1780 Grams

Customers who viewed this item also viewed

be quiet! BN283 Straight Power 11 750W ATX Black power supply unit - power supply units (750 W, 100-240, 820 W, 50-60, Active, 150 W),gold,BN283

About this item

Brand in this category on Amazon

From the manufacturer

World Class Quiet and Efficiency

Provides virtually inaudible operation

Silent Wings 3 Fan

Funnel-Shaped Fan Opening

Wire-Free Design Inside the PSU

Compatibility for the systems of tomorrow

Fully Modular Cable Management

80 PLUS Gold Certified

High Class Technologies

A testament to high quality

Japanese 105° Capacitors

General Data

Compare with similar items

Looking for specific info?

Product information

Technical Details

Additional Information

Warranty & Support

Feedback

Where did you see a lower price?

What's in the box?

Product guides and documents

Brands in this category on Amazon

Customer reviews

Customers say

Top reviews from United Kingdom

There was a problem filtering reviews right now. Please try again later.

Top reviews from other countries