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

Name: be quiet! System Power 11 450W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty
Brand: BEQUIET
Price: 65.00 GBP
Availability: OutOfStock

$65.00

Be the first to know when it's back in stock!

Delivery and Shipping

Order Processing

Orders are typically dispatched within 1-3 working days.

Delivery Options

Royal Mail 48: £1.50 on orders up to £20.
Royal Mail Tracked 48: Free on orders over £20.
DPD Next Day: Free on orders over £50 or £6.99.
International Shipping: Available at checkout.

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

Free Returns

Buy with confidence. If you're not completely satisfied with your purchase, you can return eligible items within 60 days of delivery. Products must be unused, in their original condition and packaging, and accompanied by proof of purchase.

No hassle if there's a problem. If your item arrives damaged, defective, or incorrect, simply get in touch and we'll work quickly to make it right.

Simple returns, fast refunds. Once your return has been received and inspected, approved refunds are issued to your original payment method. View our full Refund Policy for complete details and exclusions.

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

$65.00

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