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Be Quiet System Power 11 650W Black Computer Power Supply Full Wired 80 Plus Bronze
Power Supplies

Be Quiet System Power 11 650W Black Computer Power Supply Full Wired 80 Plus Bronze

Key features:

  • Power: 650W
  • Standard: ATX 3.1
  • 80 PLUS Bronze Certification
  • 12V-2x6 & 2 PCIe 6+2 connections
  • Silent 120mm fan
  • DC-to-DC technology
See full description

  • Type

    Specifies the size and compatibility with the computer case. The most common types are ATX for standard cases, SFX and TFX for small or slim systems, and EPS for powerful setups or servers.

    ATX

    The most common power supply size, compatible with most mid and full tower cases.

  • Certification

    80 Plus Bronze

    Energy saving with efficiency up to 85%. Reliable and efficient operation for your computer's power supply.

  • Fan Dimension

    The diameter of the fan in millimeters. The larger the fan, the more effective the cooling and the quieter the power supply operation. The most common size is 120mm, with some power supplies reaching up to 140mm.
  • See all
Product report

Description

Description

Be Quiet computer power supply with 650W power.

It has an 80 Plus Bronze certification, ensuring that the power supply is at least 80% efficient under varying load conditions.

It can support systems aimed at gaming.

Cooling is handled by a 120mm diameter fan.

It is full wired, meaning it does not have detachable cables.

It offers protection from:

  • Short circuit
  • Overcurrent
  • Overvoltage
  • Undervoltage
  • Overtemperature

It ensures that its nominal power is not exceeded and features protection against network fluctuations.

It is compatible with ATX computer cases.

ATX 3.1 Specifications for the Future

The System Power 11 is designed to withstand the test of time, as it fully meets the ATX 3.1 specifications. It features native support for the 12V-2x6 (450W) connector, making it ready to power the latest PCIe 5.1 graphics cards. Its ability to handle power excursions of up to twice its rated power makes it a future-proof choice that will not let you down with the demands of tomorrow's systems.

Silent Operation be quiet!

True to the company's reputation, the power supply is equipped with a high-quality 120mm temperature-controlled fan. The fan adjusts its speed according to the system load, drastically reducing noise during everyday use. Even under heavy workloads, be quiet! technology ensures that the acoustic experience remains at exceptionally low levels, offering the peace of mind you need in your office or gaming setup.

Stability and DC-to-DC Technology

The stability of your system is non-negotiable thanks to the powerful 12V rail and advanced DC-to-DC technology. This architecture ensures extremely tight voltage regulation, even under intense cross-loading conditions, providing reliable power to your processor and graphics card. The robust internal construction of the System Power 11 guarantees that your valuable components will always operate with maximum safety and efficiency.

80 PLUS Bronze Certification and Protection

With efficiency reaching up to 89.7%, the 80 PLUS Bronze certification is proof of its energy superiority and resource savings. In addition, the power supply incorporates a complete suite of protection systems (OCP, OVP, UVP, OTP, SCP, OPP), shielding your PC from overvoltages, short circuits, and overheating. With standby power consumption of less than 0.15 Watt, it is an absolutely eco-friendly and safe solution for any modern computer.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Dimensions

Power
650 W
Size
ATX

Size

Specifies the size and compatibility with the computer case. The most common types are ATX for standard cases, SFX and TFX for small or slim systems, and EPS for powerful setups or servers.

ATX
The most common power supply size, compatible with most mid and full tower cases.
Modularity
Full Wired

Modularity

Describes the degree to which power cables are detachable. Modular power supplies allow for the use of only necessary cables, resulting in better aesthetics and airflow.

Full Wired
The cables are not detachable from the power supply.
Certification
80 Plus Bronze

Certification

80 Plus Bronze

Energy saving with efficiency up to 85%. Reliable and efficient operation for your computer's power supply.
Fan Dimension
120 mm

Fan Dimension

The diameter of the fan in millimeters. The larger the fan, the more effective the cooling and the quieter the power supply operation. The most common size is 120mm, with some power supplies reaching up to 140mm.
Power Protection
Over Current Protection (OCP), Over Power Protection (OPP), Over Temperature Protection (OTP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), Surges & Inrush Protection (SIP), Under Voltage Protection (UVP)

Power Protection

The various types of protection that the power supply has.

Over Current Protection (OCP)

Protects connected devices from excessive current intensity.

Over Power Protection (OPP)
Protects the power supply if its nominal power is exceeded.
Over Temperature Protection (OTP)
Protects the power supply from overheating.
Over Voltage Protection (OVP)

Protects connected devices from excessive voltage.

Short Circuit Protection (SCP)

Protects the power supply from short circuit.

Surges & Inrush Protection (SIP)
Protects the power supply during connection to the socket and from strong network fluctuations.
Under Voltage Protection (UVP)

Protects connected devices from low voltage current.
Color
Black

ATX Version

ATX 3.1
Yes

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (90)

Reviews

4.9
90
4.9
Review this product
  1. 84
  2. 5
  3. 1
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Silent
  • Quality construction
  • Durability
  • Value for money
  • Number of connections
  • Operational stability
  • Cable management
  • Stella_K_3895
    5
    Stella_K_3895

    Verified purchase

    Very good, the only thing I didn't know was that all the cables come pre-installed so you can't remove the ones you don't need. It was entirely my fault of course, but heads up for the next person.

    Translated from Greek ·
    Did you find this review helpful?
  • ultistevener
    3
    1 out of 4 members found this review helpful
    ultistevener

    Verified purchase

    This review is about the power: 550 W

    It does its job, but there are also cheaper options. I chose it because of immediate availability.

    Cons: it is not silent, which is ironic for a product called be quiet

    Translated from Greek ·
    Did you find this review helpful?
  • andi_lucky
    5
    3 out of 3 members found this review helpful
    andi_lucky

    Verified purchase

    I changed the power supply from a Gigabyte 550 I had due to a graphics card upgrade, obvious difference, completely silent

    Translated from Greek ·
    Did you find this review helpful?
  • efilippidis
    5
    2 out of 2 members found this review helpful
    efilippidis

    Verified purchase

    This review is about the power: 750 W

    Silent and stable operation, the two top features! I replaced the 650W power supply I had with this one because I was having issues with voltage stability and my computer would shut down. Since I changed it, all the problems have been solved! It also has plenty of connections and you won't need additional cable extensions, which the manufacturer does not recommend anyway. Good cable management, even though it is Full Wired and I didn't need to go for the Full Modular option. I highly recommend it!

    Translated from Greek ·
    Did you find this review helpful?
  • Ideasfactory_manager2257
    5
    2 out of 5 members found this review helpful
    Ideasfactory_manager2257

    Verified purchase

    This review is about the power: 550 W

    Very good and quiet power supply, I have used it in 3 different builds I have made with low-mid requirements and onboard graphics.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    koukos_n

    Verified purchase

    Very good and very quiet. I have had it for over 1 and a half years now and I can say so

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Ilias_Anastasopoulos4951

    Verified purchase

    This review is about the power: 550 W

    Excellent PSU!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    kikhtricha

    Verified purchase

    This review is about the power: 450 W

    It is very good and at a good price

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    element24

    Verified purchase

    This review is about the power: 550 W

    Very good power supply! Silent!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Alx_Alx623

    Verified purchase

    This review is about the power: 750 W

    Very good and quiet.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    liaskosss_

    Verified purchase

    This review is about the power: 450 W

    Works great for a low budget PC and of course with the reliability of be quiet

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    sakis9154

    Verified purchase

    Perfect! A friend recommended it to me and he was absolutely right.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Miltos_gamer_TV

    Verified purchase

    This review is about the power: 450 W

    Very good power supply. I highly recommend it

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    alexkots18

    Verified purchase

    This review is about the power: 750 W

    Very good power supply and quiet under moderate loads

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Luis_Clares

    Verified purchase

    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    dimitris_xatzis1046

    Verified purchase

    This review is about the power: 450 W

    a good choice for a desk pc and with good parts inside for the price

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    NickGreek!!!

    Verified purchase

    This review is about the power: 750 W

    Very good power supply and it makes no noise at all

    Translated from Greek ·
    • Cable management
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    John_Ger

    Verified purchase

    This review is about the power: 750 W

    Very good quality and quiet. Good value for money power supply!

    Translated from Greek ·
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    nikos_Kamoudis9361

    Verified purchase

    it's worth its money.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful
    Gnikolo1478

    Verified purchase

    This review is about the power: 450 W

    Before you buy it, check if they give you a demonstration as the cables have been reduced.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    2 out of 2 members found this review helpful
    Konstkarapan

    Verified purchase

    This review is about the power: 450 W

    Extremely quiet. I haven't pushed it particularly hard, of course, but so far I haven't had any issues.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Number of connections
    Did you find this review helpful?
  • 5
    2 out of 2 members found this review helpful
    Gh0stάkoc

    Verified purchase

    It has the name, it also has the quality. Completely silent

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    DimitrisVt

    Verified purchase

    This review is about the power: 750 W

  • 5
    THeodoris_Georgiou

    Verified purchase

  • 5
    RodeXgaming

    Verified purchase

    This review is about the power: 550 W

  • 5
    Dliats83

    Verified purchase

  • 5
    itanimulli

    Verified purchase

    This review is about the power: 450 W

  • 5
    panagiotisg2001

    Verified purchase

  • 5
    Tasos_Anastasiadis5631

    Verified purchase

  • 5
    Mobile@kos

    Verified purchase

  • Stella_K_3895
    5
    Stella_K_3895

    Very good, the only thing I didn't know was that all the cables come pre-installed so you can't remove the ones you don't need. It was entirely my fault of course, but heads up for the next person.

    Translated from Greek ·
    0
  • ultistevener
    3
    ultistevener

    It does its job, but there are also cheaper options. I chose it because of immediate availability.

    Cons: it is not silent, which is ironic for a product called be quiet

    Translated from Greek ·
    1
  • andi_lucky
    5
    andi_lucky

    I changed the power supply from a Gigabyte 550 I had due to a graphics card upgrade, obvious difference, completely silent

    Translated from Greek ·
    3
  • efilippidis
    5
    efilippidis

    Silent and stable operation, the two top features! I replaced the 650W power supply I had with this one because I was having issues with voltage stability and my computer would shut down. Since I changed it, all the problems have been solved! It also has plenty of connections and you won't need additional cable extensions, which the manufacturer does not recommend anyway. Good cable management, even though it is Full Wired and I didn't need to go for the Full Modular option. I highly recommend it!

    Translated from Greek ·
    2
  • Ideasfactory_manager2257
    5
    Ideasfactory_manager2257

    Very good and quiet power supply, I have used it in 3 different builds I have made with low-mid requirements and onboard graphics.

    Translated from Greek ·
    2
  • See all

Description & Specifications

Be Quiet computer power supply with 650W power.

It has an 80 Plus Bronze certification, ensuring that the power supply is at least 80% efficient under varying load conditions.

It can support systems aimed at gaming.

Cooling is handled by a 120mm diameter fan.

It is full wired, meaning it does not have detachable cables.

It offers protection from:

  • Short circuit
  • Overcurrent
  • Overvoltage
  • Undervoltage
  • Overtemperature

It ensures that its nominal power is not exceeded and features protection against network fluctuations.

It is compatible with ATX computer cases.

ATX 3.1 Specifications for the Future

The System Power 11 is designed to withstand the test of time, as it fully meets the ATX 3.1 specifications. It features native support for the 12V-2x6 (450W) connector, making it ready to power the latest PCIe 5.1 graphics cards. Its ability to handle power excursions of up to twice its rated power makes it a future-proof choice that will not let you down with the demands of tomorrow's systems.

Silent Operation be quiet!

True to the company's reputation, the power supply is equipped with a high-quality 120mm temperature-controlled fan. The fan adjusts its speed according to the system load, drastically reducing noise during everyday use. Even under heavy workloads, be quiet! technology ensures that the acoustic experience remains at exceptionally low levels, offering the peace of mind you need in your office or gaming setup.

Stability and DC-to-DC Technology

The stability of your system is non-negotiable thanks to the powerful 12V rail and advanced DC-to-DC technology. This architecture ensures extremely tight voltage regulation, even under intense cross-loading conditions, providing reliable power to your processor and graphics card. The robust internal construction of the System Power 11 guarantees that your valuable components will always operate with maximum safety and efficiency.

80 PLUS Bronze Certification and Protection

With efficiency reaching up to 89.7%, the 80 PLUS Bronze certification is proof of its energy superiority and resource savings. In addition, the power supply incorporates a complete suite of protection systems (OCP, OVP, UVP, OTP, SCP, OPP), shielding your PC from overvoltages, short circuits, and overheating. With standby power consumption of less than 0.15 Watt, it is an absolutely eco-friendly and safe solution for any modern computer.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Dimensions

Power
650 W
Size
ATX

Size

Specifies the size and compatibility with the computer case. The most common types are ATX for standard cases, SFX and TFX for small or slim systems, and EPS for powerful setups or servers.

ATX
The most common power supply size, compatible with most mid and full tower cases.
Modularity
Full Wired

Modularity

Describes the degree to which power cables are detachable. Modular power supplies allow for the use of only necessary cables, resulting in better aesthetics and airflow.

Full Wired
The cables are not detachable from the power supply.
Certification
80 Plus Bronze

Certification

80 Plus Bronze

Energy saving with efficiency up to 85%. Reliable and efficient operation for your computer's power supply.
Fan Dimension
120 mm

Fan Dimension

The diameter of the fan in millimeters. The larger the fan, the more effective the cooling and the quieter the power supply operation. The most common size is 120mm, with some power supplies reaching up to 140mm.
Power Protection
Over Current Protection (OCP), Over Power Protection (OPP), Over Temperature Protection (OTP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), Surges & Inrush Protection (SIP), Under Voltage Protection (UVP)

Power Protection

The various types of protection that the power supply has.

Over Current Protection (OCP)

Protects connected devices from excessive current intensity.

Over Power Protection (OPP)
Protects the power supply if its nominal power is exceeded.
Over Temperature Protection (OTP)
Protects the power supply from overheating.
Over Voltage Protection (OVP)

Protects connected devices from excessive voltage.

Short Circuit Protection (SCP)

Protects the power supply from short circuit.

Surges & Inrush Protection (SIP)
Protects the power supply during connection to the socket and from strong network fluctuations.
Under Voltage Protection (UVP)

Protects connected devices from low voltage current.
Color
Black

ATX Version

ATX 3.1
Yes

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (90)

4.9
90
4.9
Review this product
  1. 84
  2. 5
  3. 1
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Silent
  • Quality construction
  • Durability
  • Value for money
  • Number of connections
  • Operational stability
  • Cable management
  • Stella_K_3895
    5
    Stella_K_3895

    Verified purchase

    Very good, the only thing I didn't know was that all the cables come pre-installed so you can't remove the ones you don't need. It was entirely my fault of course, but heads up for the next person.

    Translated from Greek ·
    Did you find this review helpful?
  • ultistevener
    3
    1 out of 4 members found this review helpful
    ultistevener

    Verified purchase

    This review is about the power: 550 W

    It does its job, but there are also cheaper options. I chose it because of immediate availability.

    Cons: it is not silent, which is ironic for a product called be quiet

    Translated from Greek ·
    Did you find this review helpful?
  • andi_lucky
    5
    3 out of 3 members found this review helpful
    andi_lucky

    Verified purchase

    I changed the power supply from a Gigabyte 550 I had due to a graphics card upgrade, obvious difference, completely silent

    Translated from Greek ·
    Did you find this review helpful?
  • efilippidis
    5
    2 out of 2 members found this review helpful
    efilippidis

    Verified purchase

    This review is about the power: 750 W

    Silent and stable operation, the two top features! I replaced the 650W power supply I had with this one because I was having issues with voltage stability and my computer would shut down. Since I changed it, all the problems have been solved! It also has plenty of connections and you won't need additional cable extensions, which the manufacturer does not recommend anyway. Good cable management, even though it is Full Wired and I didn't need to go for the Full Modular option. I highly recommend it!

    Translated from Greek ·
    Did you find this review helpful?
  • Ideasfactory_manager2257
    5
    2 out of 5 members found this review helpful
    Ideasfactory_manager2257

    Verified purchase

    This review is about the power: 550 W

    Very good and quiet power supply, I have used it in 3 different builds I have made with low-mid requirements and onboard graphics.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    koukos_n

    Verified purchase

    Very good and very quiet. I have had it for over 1 and a half years now and I can say so

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Ilias_Anastasopoulos4951

    Verified purchase

    This review is about the power: 550 W

    Excellent PSU!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    kikhtricha

    Verified purchase

    This review is about the power: 450 W

    It is very good and at a good price

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    element24

    Verified purchase

    This review is about the power: 550 W

    Very good power supply! Silent!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Alx_Alx623

    Verified purchase

    This review is about the power: 750 W

    Very good and quiet.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    liaskosss_

    Verified purchase

    This review is about the power: 450 W

    Works great for a low budget PC and of course with the reliability of be quiet

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    sakis9154

    Verified purchase

    Perfect! A friend recommended it to me and he was absolutely right.

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Miltos_gamer_TV

    Verified purchase

    This review is about the power: 450 W

    Very good power supply. I highly recommend it

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    alexkots18

    Verified purchase

    This review is about the power: 750 W

    Very good power supply and quiet under moderate loads

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    Luis_Clares

    Verified purchase

    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    dimitris_xatzis1046

    Verified purchase

    This review is about the power: 450 W

    a good choice for a desk pc and with good parts inside for the price

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    NickGreek!!!

    Verified purchase

    This review is about the power: 750 W

    Very good power supply and it makes no noise at all

    Translated from Greek ·
    • Cable management
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    John_Ger

    Verified purchase

    This review is about the power: 750 W

    Very good quality and quiet. Good value for money power supply!

    Translated from Greek ·
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    Did you find this review helpful?
  • 5
    1 out of 1 members found this review helpful
    nikos_Kamoudis9361

    Verified purchase

    it's worth its money.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    1 out of 2 members found this review helpful
    Gnikolo1478

    Verified purchase

    This review is about the power: 450 W

    Before you buy it, check if they give you a demonstration as the cables have been reduced.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    2 out of 2 members found this review helpful
    Konstkarapan

    Verified purchase

    This review is about the power: 450 W

    Extremely quiet. I haven't pushed it particularly hard, of course, but so far I haven't had any issues.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Number of connections
    Did you find this review helpful?
  • 5
    2 out of 2 members found this review helpful
    Gh0stάkoc

    Verified purchase

    It has the name, it also has the quality. Completely silent

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    DimitrisVt

    Verified purchase

    This review is about the power: 750 W

  • 5
    THeodoris_Georgiou

    Verified purchase

  • 5
    RodeXgaming

    Verified purchase

    This review is about the power: 550 W

  • 5
    Dliats83

    Verified purchase

  • 5
    itanimulli

    Verified purchase

    This review is about the power: 450 W

  • 5
    panagiotisg2001

    Verified purchase

  • 5
    Tasos_Anastasiadis5631

    Verified purchase

  • 5
    Mobile@kos

    Verified purchase

  • Stella_K_3895
    5
    Stella_K_3895

    Very good, the only thing I didn't know was that all the cables come pre-installed so you can't remove the ones you don't need. It was entirely my fault of course, but heads up for the next person.

    Translated from Greek ·
    0
  • ultistevener
    3
    ultistevener

    It does its job, but there are also cheaper options. I chose it because of immediate availability.

    Cons: it is not silent, which is ironic for a product called be quiet

    Translated from Greek ·
    1
  • andi_lucky
    5
    andi_lucky

    I changed the power supply from a Gigabyte 550 I had due to a graphics card upgrade, obvious difference, completely silent

    Translated from Greek ·
    3
  • efilippidis
    5
    efilippidis

    Silent and stable operation, the two top features! I replaced the 650W power supply I had with this one because I was having issues with voltage stability and my computer would shut down. Since I changed it, all the problems have been solved! It also has plenty of connections and you won't need additional cable extensions, which the manufacturer does not recommend anyway. Good cable management, even though it is Full Wired and I didn't need to go for the Full Modular option. I highly recommend it!

    Translated from Greek ·
    2
  • Ideasfactory_manager2257
    5
    Ideasfactory_manager2257

    Very good and quiet power supply, I have used it in 3 different builds I have made with low-mid requirements and onboard graphics.

    Translated from Greek ·
    2
  • See all
61,40 €
14,00 €   shipping cost