Power Supplies

Be Quiet Straight Power 11 850W Power Supply Full Modular 80 Plus Platinum

The System Power 11 by Be Quiet is a Full Modular power supply, designed for silent operation and certified with 80 PLUS Platinum. It features a built-in 135mm fan.

The System Power 11 by Be Quiet is a Full Modular power supply, designed for silent operation and certified with 80 PLUS Platinum. It features a built-in 135mm fan.

See full description See full description
  • Certification 80 Plus Platinum
  • See all
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Description

Description

The System Power 11 by Be Quiet is a Full Modular power supply, designed for silent operation and certified with 80 PLUS Platinum. It features a built-in 135mm fan.

Silent Operation & 80 PLUS Platinum Certification

Silent operation achieved through the use of a high-quality, 135mm temperature-controlled fan and 80 PLUS Platinum certification, convincing proof of the PSU's efficient energy-saving performance.

Pioneering DC to DC Conversion

Equipped with a plethora of advanced technology, the PSU features DC-to-DC conversion for voltage regulation, even under heavy conditions. This ensures reliable operation and makes it ready for the next generation of processors and graphics cards.

Manufacturer

See full description

Specifications

Specifications

Dimensions

Power
850 W
Size
ATX, EPS
Modularity
Full Modular
Certification
80 Plus Platinum
Fan Dimension
135 mm
Extra
-
Color
Black

ATX Version

ATX 3.1
-

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 (16)

Reviews

  1. 13
  2. 2
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Cable management
  • Silent
  • Number of connections
  • Value for money
  • Quality construction
  • Durability
  • Operational stability
  • t.aleksandros
    1
    1 out of 9 members found this review helpful

    After 3 months of use, it gave up. I don't know if it's the batch, but I've seen other cases like mine. It turns on, sparks, and then stops in seconds as if a fuse is blowing. I sent it for RMA and I'm waiting to see what will happen... I wasted 180€. I will update when the RMA process is complete.

    ***update: The process took relatively little time from be quiet. It was replaced with a new one, the only "negative" is that you have to pay for shipping to Germany.

    Translated from Greek ·
    • Cable management
    • Silent
    • Number of connections
    • Quality construction
    • Durability
    • Operational stability
    Did you find this review helpful?
  • Dailenth_Ranussa
    5
    25 out of 26 members found this review helpful

    I know that 5* is a bit lazy, but I have something to tell you. It is selected as one of the best power supplies you can buy for the money you pay (excluding Value For Money).

    With the first day I connected the power supply, I wanted to immediately test its stability on Ugine Superposition. What I didn't expect is that it solved the problem I had with the Vega 56, a very annoying Coil Whine. My jaw dropped, I couldn't believe it myself.

    The Coil Whine, the sound of the graphics card's power, is almost, if not zero. And I can finally enjoy my games without any disturbance.

    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 5 members found this review helpful

    Verified purchase

    Crazy... it is!!! It does what it says..

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 4
    0 out of 6 members found this review helpful

    It is quite good, the positive thing is that it doesn't make much noise

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    0 out of 4 members found this review helpful

    Verified purchase

    Very good and user-friendly

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

    Verified purchase

    For 1.5 months now, I have it with a high-end processor and graphics card, and it's performing very well.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    3 out of 3 members found this review helpful

    It gives you the answer on how "The Sound Of Silence" sounds.
    Perfect in everything and for everything.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
  • Verified purchase

    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Number of connections
    • Operational stability
    • Value for money
  • Verified purchase

    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
  • After 3 months of use, it gave up. I don't know if it's the batch, but I've seen other cases like mine. It turns on, sparks, and then stops in seconds as if a fuse is blowing. I sent it for RMA and I'm waiting to see what will happen... I wasted 180€. I will update when the RMA process is complete.

    ***update: The process took relatively little time from be quiet. It was replaced with a new one, the only "negative" is that you have to pay for shipping to Germany.

    Translated from Greek ·
    1
  • I know that 5* is a bit lazy, but I have something to tell you. It is selected as one of the best power supplies you can buy for the money you pay (excluding Value For Money).

    With the first day I connected the power supply, I wanted to immediately test its stability on Ugine Superposition. What I didn't expect is that it solved the problem I had with the Vega 56, a very annoying Coil Whine. My jaw dropped, I couldn't believe it myself.

    The Coil Whine, the sound of the graphics card's power, is almost, if not zero. And I can finally enjoy my games without any disturbance.

    Translated from Greek ·
    25
  • Crazy... it is!!! It does what it says..

    Translated from Greek ·
    1
  • It is quite good, the positive thing is that it doesn't make much noise

    Translated from Greek ·
    0
  • Very good and user-friendly

    Translated from Greek ·
    0
  • See all

Description & Specifications

The System Power 11 by Be Quiet is a Full Modular power supply, designed for silent operation and certified with 80 PLUS Platinum. It features a built-in 135mm fan.

Silent Operation & 80 PLUS Platinum Certification

Silent operation achieved through the use of a high-quality, 135mm temperature-controlled fan and 80 PLUS Platinum certification, convincing proof of the PSU's efficient energy-saving performance.

Pioneering DC to DC Conversion

Equipped with a plethora of advanced technology, the PSU features DC-to-DC conversion for voltage regulation, even under heavy conditions. This ensures reliable operation and makes it ready for the next generation of processors and graphics cards.

Manufacturer

Dimensions

Power
850 W
Size
ATX, EPS
Modularity
Full Modular
Certification
80 Plus Platinum
Fan Dimension
135 mm
Extra
-
Color
Black

ATX Version

ATX 3.1
-

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 (16)

  1. 13
  2. 2
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Cable management
  • Silent
  • Number of connections
  • Value for money
  • Quality construction
  • Durability
  • Operational stability
  • t.aleksandros
    1
    1 out of 9 members found this review helpful

    After 3 months of use, it gave up. I don't know if it's the batch, but I've seen other cases like mine. It turns on, sparks, and then stops in seconds as if a fuse is blowing. I sent it for RMA and I'm waiting to see what will happen... I wasted 180€. I will update when the RMA process is complete.

    ***update: The process took relatively little time from be quiet. It was replaced with a new one, the only "negative" is that you have to pay for shipping to Germany.

    Translated from Greek ·
    • Cable management
    • Silent
    • Number of connections
    • Quality construction
    • Durability
    • Operational stability
    Did you find this review helpful?
  • Dailenth_Ranussa
    5
    25 out of 26 members found this review helpful

    I know that 5* is a bit lazy, but I have something to tell you. It is selected as one of the best power supplies you can buy for the money you pay (excluding Value For Money).

    With the first day I connected the power supply, I wanted to immediately test its stability on Ugine Superposition. What I didn't expect is that it solved the problem I had with the Vega 56, a very annoying Coil Whine. My jaw dropped, I couldn't believe it myself.

    The Coil Whine, the sound of the graphics card's power, is almost, if not zero. And I can finally enjoy my games without any disturbance.

    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 5 members found this review helpful

    Verified purchase

    Crazy... it is!!! It does what it says..

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 4
    0 out of 6 members found this review helpful

    It is quite good, the positive thing is that it doesn't make much noise

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    0 out of 4 members found this review helpful

    Verified purchase

    Very good and user-friendly

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

    Verified purchase

    For 1.5 months now, I have it with a high-end processor and graphics card, and it's performing very well.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • 5
    3 out of 3 members found this review helpful

    It gives you the answer on how "The Sound Of Silence" sounds.
    Perfect in everything and for everything.

    Translated from Greek ·
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
  • Verified purchase

    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Number of connections
    • Operational stability
    • Value for money
  • Verified purchase

    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
    • Cable management
    • Silent
    • Quality construction
    • Durability
    • Value for money
    • Number of connections
    • Operational stability
  • After 3 months of use, it gave up. I don't know if it's the batch, but I've seen other cases like mine. It turns on, sparks, and then stops in seconds as if a fuse is blowing. I sent it for RMA and I'm waiting to see what will happen... I wasted 180€. I will update when the RMA process is complete.

    ***update: The process took relatively little time from be quiet. It was replaced with a new one, the only "negative" is that you have to pay for shipping to Germany.

    Translated from Greek ·
    1
  • I know that 5* is a bit lazy, but I have something to tell you. It is selected as one of the best power supplies you can buy for the money you pay (excluding Value For Money).

    With the first day I connected the power supply, I wanted to immediately test its stability on Ugine Superposition. What I didn't expect is that it solved the problem I had with the Vega 56, a very annoying Coil Whine. My jaw dropped, I couldn't believe it myself.

    The Coil Whine, the sound of the graphics card's power, is almost, if not zero. And I can finally enjoy my games without any disturbance.

    Translated from Greek ·
    25
  • Crazy... it is!!! It does what it says..

    Translated from Greek ·
    1
  • It is quite good, the positive thing is that it doesn't make much noise

    Translated from Greek ·
    0
  • Very good and user-friendly

    Translated from Greek ·
    0
  • See all