Get free delivery on all orders over £20!

be quiet! System Power 11 450W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty

正常价格 $79.00

We Accept:

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Delivery and Shipping

Shipping & Processing

Order Processing

  • Same business-day for orders placed before 3 PM (GMT), except in rare cases when it may take 1 additional business day.
  • Larger or specialist items require up to 3 business days to process.

Delivery Options

  • Royal Mail 48
    • Free on orders over £20
    • £2.99 on orders under £20
    • Delivery in 2–3 business days
  • Tracked 24 (Next-Day) — £4.99
  • Standard (Large & Specialist Items)
    • Free on orders over £20
    • £6.99 on orders under £20
    • Delivery in 2–14 business days (typically around 7 days)
    • Processing may take up to 3 business days
  • International
    • We ship worldwide. Delivery options and estimated timeframes for your country are available at checkout.
    • Customs, duties, and import taxes are your responsibility.

You’ll receive tracking details as soon as your order ships [track your order here]. For full details, please see our [Shipping Policy].

🌳 Trees Planted — and Growing
Your support helps restore forests and build a more sustainable future.
be quiet! System Power 11 450W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty

be quiet! System Power 11 450W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty

$79.00

be quiet! System Power 11 450W (BP009EU) – 80 PLUS Bronze ATX Power Supply

The be quiet! System Power 11 450W (MPN BP009EU) is a reliable, entry-level internal power supply unit designed for mid-range desktop PCs. With 80 PLUS Bronze efficiency and ATX 3.1 compliance, it delivers stable 450 W continuous output and supports modern PCIe 5.1 graphics cards via dual 6+2-pin connectors. Its non-modular, flat black cabling ensures straightforward installation and dependable everyday performance.

Key Features

  • 450 W Continuous Power Output
    Stable 450 W delivery with a single 12 V rail rated at 37.5 A.

  • 80 PLUS Bronze Certified
    Up to 89% efficiency at 50% load and 230 V input, helping reduce power loss and heat.

  • Modern ATX Standards

  • ATX 3.1 and EPS 12V v2.92 compliance
  • Supports PCIe 5.1 GPUs via 2 x 6+2-pin PCIe connectors

  • Quiet, Controlled Cooling

  • 120 mm rifle-bearing fan
  • Temperature-controlled operation
  • Approx. 10.5 dB(A) at light load, up to approx. 19.1 dB(A) at full load

  • Comprehensive Protection
    Built-in safety features:
    OCP, OVP, UVP, OPP, OTP, SCP, plus surge and inrush protection.

  • Flat, Fully Wired Cabling
    Non-modular design with flat black cables for hassle-free installation.

  • Long-Term Reliability

  • MTBF: 100,000 hours at 25 °C
  • 5-year manufacturer’s warranty

Technical Specifications

Category Specification
Model / MPN System Power 11 450 W (BP009EU)
Form Factor ATX
Compliance ATX 3.1, EPS 12V v2.92
Power Output 450 W continuous
Efficiency Certification 80 PLUS Bronze (up to 89% at 50% load)
Input Voltage 200–240 VAC
Input Frequency 50 Hz
Input Current Up to 4 A
Power Factor = 0.98 at full load
Standby Power < 0.15 W
Operating Temperature 0–40 °C
MTBF 100,000 hours at 25 °C
12 V Rail Single 12 V rail at 37.5 A
Protections OCP, OVP, UVP, OPP, OTP, SCP, surge, inrush
Fan 120 mm rifle-bearing, temperature-controlled
Noise Level ~10.5 dB(A) light load, ~19.1 dB(A) full load
Modularity Non-modular
Connectors 1 x 20+4-pin ATX
1 x 4+4-pin CPU (EPS)
2 x 6+2-pin PCIe
5 x SATA
1 x Molex (4-pin PATA)
Cable Type Flat black cables
Cable Length Up to 90 cm
Dimensions (W x D x H) 150 mm x 140 mm x 86 mm
Weight ~1.7 kg
Certifications CE, CB, TUV, RoHS, UKCA, WEEE, ErP, Energy Star
Warranty 5 years