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header-product be quiet! SFX POWER 3 450W Power Supply Unit
73.49 €
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AiO.lv Computer Components Pc Components Power Supplies (PSU) bequiet!

be quiet! SFX POWER 3 450W Power Supply Unit

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be quiet! SFX POWER 3 450W Power Supply Photo 1
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be quiet! SFX POWER 3 450W Power Supply Photo 1
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be quiet! SFX POWER 3 450W Power Supply Photo 1
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be quiet! SFX POWER 3 450W Power Supply Unit
73.49 €
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Short description

The be quiet! SFX POWER 3 450W power supply unit offers reliable performance with a total power of 450W and peak power of 500W. It features a 20+4 pin ATX motherboard connector and comes with various SATA power cable lengths (300, 450, 600 mm). With an active cooling system and an 8 cm fan, it ensures efficient heat dissipation. Certified with 80 PLUS Bronze, it guarantees energy efficiency. Ideal for PC builds, it operates within an AC input voltage range of 100 - 240V.
Available at price 73.49 €: 1 pcs.
Total available for order: 34 pcs.
Warranty: 2 Years
SKU: 4114461
Manufacturer: bequiet!
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delivery
Deliver the order:
to the Customer Service Center at Kengaraga 2b, Riga
30.06.2026 {{selectedOffer.officeDeliveryString}}
free
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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
30.06.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
03.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.26 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend / DPD Paku skapis / Omniva / Venipak Pickup / Venipak Locker / Latvijas Pasts nodaļa
03.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 2.04 euros per month
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Product information

Description

SFX Power 3 450W is a compact power supply unit by be quiet! designed for mini and media PC systems. It delivers sufficient output to support demanding PCIe graphics cards while balancing power delivery, low noise and dependable operation. The unit is intended for compact builds that require stable performance in a small form factor.

Advantages

The SFX Power 3 450W combines compact dimensions with a power output suitable for many discrete PCIe graphics cards, low operational noise characteristic of be quiet! products, and build quality aimed at reliable continuous operation. Its small size makes it suitable for mini-ITX or other compact chassis where space is limited.

Key specifications

  • Form factor: SFX
  • Rated power: 450 W
  • Compatibility: supports PCIe graphics cards
  • Manufacturer: be quiet!

How to use

Install the SFX Power 3 450W into an SFX-compatible case following the case and power supply mounting instructions. Connect the main ATX power cable to the motherboard and attach PCIe power connectors to your graphics card as required. Ensure adequate airflow in the compact chassis and observe standard safety procedures when working inside the PC.

Recommendations

Verify case compatibility with SFX power supplies and check graphics card power requirements before installation to ensure the 450W rating meets your system’s needs. Use a case with sufficient ventilation to maintain optimal operating temperatures.

Specifications

Total power:
450 W
Efficiency:
85.9 %
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Bronze
Fan diameter:
80 mm
Weight:
0.89 kg
Product colour:
Black
All features

Power

Total power:
450 W
Efficiency:
85.9 %
Power Factor Correction (PFC) type:
Active
Peak power:
500 W
Hold time:
21 ms
Power protection features:
Over voltage, Short circuit, Over power, Over current, Under voltage
Power factor:
0.98
Combined power (+3.3V):
85 W
Combined power (+12V):
450 W
Combined power (+5V):
85 W
Max output current (+3.3V):
16 A
Max output current (+5V):
16 A
Max output current (-12V):
0.3 A
Max output current (+5Vsb):
2.5 A
Input current:
6/2.5
AC input frequency:
50 - 60
AC input voltage:
100 - 240
Max output current (+12V1):
37.5 A
Maximum input current (@110V):
6 A
Maximum input current (@220V):
2.5 A

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
Floppy drive power connector:
1
Number of SATA power connectors:
3
Peripheral (Molex) power connectors (4-pin):
2
PCI Express power connectors (6+2 pin):
2
Cabling type:
Non-Modular
Motherboard power cable length:
350 mm
SATA power cable length:
300, 450, 600
Peripheral (Molex) power cable length:
300, 450
PCI Express power cable length:
550 mm
Floppy disk drive cable length:
600 mm
EPS power connector (4+4 pin):
Yes

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.
33.8 dB
Bearing technology:
Rifle
ATX version:
3.42
EPS version:
2.92
Power supply unit (PSU) form factor:
SFX

Design

Fan diameter:
80 mm
Number of fans:
1 fan(s)
Cooling type:
Active
On/off switch:
Yes
Product colour:
Black

Certificates

Compliance certificates:
RoHS, WEEE

Technical details

Sustainability compliance:
Yes
Sustainability certificates:
ENERGY STAR, ErP

Weight & dimensions

Weight:
0.89 kg
Height:
64 mm
Width:
125 mm
Depth:
100 mm

Packaging data

Package weight:
1240 g
Package depth:
75 mm
Package height:
207 mm
Package width:
197 mm
Package type:
Box

Logistics data

Shipping (inner) case width:
265 mm
Shipping (inner) case length:
457 mm
Shipping (inner) case height:
233 mm
Shipping (inner) case gross weight:
8190 g
Products per shipping (inner) case:
6 pc(s)
Harmonized System (HS) code:
84733020

Safety regulation & standards

Safety:
CE, CB, TÜV, CU
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Instructions

mmo_91303779_1618322911_9187_19206.pdf
bequiet-BN321-4114461.pdf

Description

Instructions

mmo_91303779_1618322911_9187_19206.pdf
bequiet-BN321-4114461.pdf
Machine translation. Load original
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Stock data
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76.49 €
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79.99 €
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Customer reviews

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Customer questions

FAQ

How much does the be quiet! SFX POWER 3 450W Power Supply cost, and is it available for purchase?

The price is 73.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 30.06.2026 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, Installment. All transactions are 100% secure and encrypted.

Can be quiet! SFX POWER 3 450W Power Supply be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the be quiet! SFX POWER 3 450W Power Supply online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 be quiet! SFX POWER 3 450W Power Supply?

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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