Power Supply Unit be quiet! System Power 11

Name: Power Supply Unit be quiet! BP009EU
Brand: bequiet!
SKU: 11431558
Price: 52.49 EUR
Availability: InStock

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Power Supply Unit be quiet! System Power 11 450W

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Short description

The be quiet! System Power 11 450W power supply unit is designed for PC use, featuring a 20+4 pin ATX connector and non-modular cabling. It delivers a total power of 450W with an AC input voltage of 200-240V and a frequency of 50Hz. This ATX form factor PSU is 80 PLUS Bronze certified, ensuring efficient power delivery. The active cooling system with a 12 cm fan ensures optimal performance and reliability. Compliance with CB, CE, RoHS, TÜV, UKCA, and WEEE standards guarantees safety and environmental responsibility.

Available at price 52.49 €: 6 pcs.

Total available for order: 317 pcs.

Warranty: 2 Years

SKU: 11431558

Manufacturer: bequiet!

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

29.06.2026 {{selectedOffer.officeDeliveryString}}

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

29.06.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

02.07.2026 {{selectedOffer.courierDeliveryString}}

From 4.99 € (Weight: 2.15 kg)

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Latvijas Pasts pakomāts / Unisend / DPD Paku skapis / Omniva / Venipak Pickup / Venipak Locker / Latvijas Pasts nodaļa

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From 1.99 €

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Payment Methods:

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Product information

Description

System Power 11 450W is a reliable, value-oriented ATX power supply designed for users seeking quiet operation and stable performance. It supports ATX 3.1 compatibility and includes a temperature-controlled fan to reduce noise during light loads, while maintaining sufficient cooling under higher demand. The unit also features a low standby power draw, making it suitable for energy-conscious builds.

Advantages

Provides dependable power delivery for entry-level and mainstream systems while keeping operating noise low thanks to its temperature-controlled fan. ATX 3.1 compatibility ensures modern safety and performance standards. Low stand-by drain reduces wasted energy when the system is idle.

Key specifications

Model: System Power 11 450W
Wattage: 450 W
Form factor: ATX (ATX 3.1 compatible)
Cooling: temperature-controlled fan
Standby power: low stand-by drain

How to use

Install the System Power 11 450W into a compatible ATX case following the motherboard and case manufacturer instructions. Connect the 24-pin ATX main connector, CPU power connector, and necessary PCIe/SATA/Molex cables to the components. Ensure proper airflow within the case so the temperature-controlled fan operates effectively. Verify all connections before powering on the system.

Recommendations

Use this PSU in entry-level or mainstream desktop builds where ATX 3.1 support and quiet, efficient operation are required. Pair with compatible components and a case that provides adequate airflow to maximize cooling efficiency.

Specifications

Total power:: 450 W
Efficiency:: 89 %
Motherboard power connector:: 20+4 pin ATX
80 PLUS certification:: 80 PLUS Bronze
Fan diameter:: 120 mm
Weight:: 1.7 kg
Product colour:: Black

All features

Power

Total power:: 450 W
Efficiency:: 89 %
Hold time:: 16.86 ms
Power protection features:: Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage
Power factor:: 0.98
Combined power (+3.3V):: 110 W
Combined power (+12V):: 450 W
Combined power (+5V):: 110 W
Combined power (-12V):: 3.6 W
Combined power (+5Vsb):: 15 W
Max output current (+3.3V):: 20 A
Max output current (+5V):: 20 A
Max output current (-12V):: 0.3 A
Max output current (+5Vsb):: 3 A
Input current:: 4
AC input frequency:: 50
AC input voltage:: 200 - 240
Max output current (+12V1):: 37.5 A

Ports & interfaces

Motherboard power connector:: 20+4 pin ATX
Number of SATA power connectors:: 5
Peripheral (Molex) power connectors (4-pin):: 1
CPU power connector (4+4 pin):: Yes
PCI Express power connectors (6+2 pin):: 2
Cabling type:: Non-Modular

Performance

Purpose:: PC
80 PLUS certification:: 80 PLUS Bronze
Mean time between failures (MTBF):: 100000 h
Noise level: Not only energy saving helps to protect the environment but also noise level reduction. Noise level reduction up to 3 dB really means noise level reduction in 2 times. For example, a device with noise level 39 dB (А) will be two times quieter than a devise with a noise level 42 dB (А). Energy-saving certificate that shows noise level plays the role of an additional objective indicator basing on which You can successfully choose a product.: 19.1 dB
Bearing technology:: Rifle
ATX version:: 3.1
EPS version:: 2.92
Power supply unit (PSU) form factor:: ATX

Design

Fan diameter:: 120 mm
Number of fans:: 1 fan(s)
Cooling type:: Active
Fan speed:: 0 - 1800
On/off switch:: Yes
Product colour:: Black

Certificates

Waste Electrical and Electronic Equipment (WEEE) compliance:: Yes
Compliance certificates:: CB, UKCA, CE, RoHS, TÜV mark, WEEE

Technical details

Sustainability certificates:: ENERGY STAR, ErP

Weight & dimensions

Weight:: 1.7 kg
Height:: 140 mm
Width:: 150 mm
Depth:: 86 mm

Packaging data

Package weight:: 2100 g
Package depth:: 268 mm
Package height:: 97 mm
Package width:: 195 mm
Package type:: Box

Other features

Screws included:: Yes
Cable ties included:: Yes

Logistics data

Shipping (inner) case width:: 311 mm
Shipping (inner) case length:: 556 mm
Shipping (inner) case height:: 218 mm
Shipping (inner) case gross weight:: 13600 g
Products per shipping (inner) case:: 6 pc(s)

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Instructions

mmo_131010018_1747390688_3646_2097532.pdf

bequiet-BP009EU-11431558.pdf

Description

Instructions

mmo_131010018_1747390688_3646_2097532.pdf

bequiet-BP009EU-11431558.pdf

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Warehouse	Stock	Delivery to the store	Store Price
WH113	6	29.06.2026	52.49 € Best price
EU16	38	29.06.2026	54.99 €
WH94	76	29.06.2026	55.49 €
WH334	6	29.06.2026	55.99 €
EU1	13	22.06.2026 Best delivery	55.99 €
EU3	71	29.06.2026	56.49 €
WH337	1	29.06.2026	60.49 €

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Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
EU9	52	29.06.2026	55.49 €
WH109	52	13.07.2026	60.99 €
EU6	2	29.06.2026	69.99 €

52.49 €

Stock: 6

Delivery Date: 29.06.2026

Warehouse: WH113

54.99 €

Stock: 38

Delivery Date: 29.06.2026

Warehouse: EU16

55.49 €

Stock: 76

Delivery Date: 29.06.2026

Warehouse: WH94

55.99 €

Stock: 6

Delivery Date: 29.06.2026

Warehouse: WH334

55.99 €

Stock: 13

Delivery Date: 22.06.2026 Best delivery

Warehouse: EU1

56.49 €

Stock: 71

Delivery Date: 29.06.2026

Warehouse: EU3

60.49 €

Stock: 1

Delivery Date: 29.06.2026

Warehouse: WH337

Available only for legal entities

55.49 €

Stock: 52

Delivery Date: 29.06.2026

Warehouse: EU9

60.99 €

Stock: 52

Delivery Date: 13.07.2026

Warehouse: WH109

69.99 €

Stock: 2

Delivery Date: 29.06.2026

Warehouse: EU6

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Customer questions

FAQ

How much does the Power Supply Unit be quiet! System Power 11 cost, and is it available for purchase?

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 317 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All bequiet! products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized bequiet! service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, motherboard power connector, 80 plus certification, fan diameter, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for Power Supply Unit be quiet! System Power 11?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

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