Power Supply Unit Silverstone SX450-B

Name: Power Supply Unit Silverstone SX450-B SST-SX450-B
Brand: SILVERSTONE
SKU: 4254394
Price: 91.99 EUR
Availability: InStock

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Power Supply Unit Silverstone SX450-B 450 W

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Short description

The Silverstone SX450-B is a compact SFX power supply unit with a total power of 450 W. It features a 24-pin ATX motherboard connector and supports a wide AC input voltage range of 90 - 265 V. With an 80 PLUS Bronze certification, it ensures efficient power delivery. The PSU includes one 8 cm fan for cooling and comes with SATA power cables of varying lengths (100, 200, 300 mm). Dimensions are 125 mm (W) x 100 mm (D) x 63.5 mm (H). Ideal for PC builds requiring reliable power.

Available at price 91.99 €: 2 pcs.

Total available for order: 4 pcs.

Warranty: 2 Years

SKU: 4254394

Manufacturer: SILVERSTONE

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

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From 4.99 € (Weight: 1.24 kg)

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Product information

Description

The Silverstone SX450-B 450 W is a compact SFX power supply unit designed for small-form-factor PC builds. It delivers up to 450 W total power, includes a 24-pin ATX motherboard connector and supports a wide AC input range of 90–265 V. The unit is finished in black, has an 80 mm cooling fan and comes with SATA power cables in lengths of 100, 200 and 300 mm. With 80 PLUS Bronze certification and compliance with the IEC 62368-1 safety standard, the SX450-B provides efficient and standards-compliant power delivery for reliable system operation.

Advantages

The SX450-B combines 80 PLUS Bronze efficiency with a quiet 80 mm fan to reduce energy losses and keep noise low. Its Active PFC circuitry improves power factor and overall efficiency, while the Forward + DC-to-DC topology enhances voltage stability and supply reliability. Compliance with the IEC 62368-1 safety standard ensures the unit meets current safety requirements.

Suitable for

Compact SFX and small-form-factor gaming or workstation PCs
Home and office systems requiring a reliable 450 W power source
Builds where 24-pin ATX compatibility and short PSU depth are needed

Key specifications

Total power: 450 W
Efficiency: 80 PLUS Bronze (approx. 85%)
Motherboard connector: 24-pin ATX
AC input range: 90–265 V
Fan diameter: 80 mm
Dimensions (W × D × H): 125 × 100 × 63.5 mm
Weight: 0.91 kg
Colour: Black
Safety standard: IEC 62368-1

How to use

Install the SX450-B into a compatible SFX or SFX-to-ATX adapter bay following your chassis manual. Connect the 24-pin ATX cable to the motherboard and attach SATA, peripheral or PCIe connectors as required by your components. Ensure the AC mains input matches the specified 90–265 V range and secure the PSU before powering on the system. Allow clearance for airflow around the 80 mm fan and route cables to avoid obstructing case ventilation.

Usage recommendations

For stable operation, use the SX450-B in systems where the total continuous load does not exceed the rated 450 W. Maintain case airflow, inspect and clean the fan periodically, and avoid operating the PSU in high-temperature or high-dust environments to prolong service life.

Specifications

Total power:: 450 W
Efficiency:: 85 %
Motherboard power connector:: 24-pin ATX
80 PLUS certification:: 80 PLUS Bronze
Fan diameter:: 80 mm
Weight:: 0.91 kg
Product colour:: Black

All features

Power

Total power:: 450 W
Efficiency:: 85 %
Power Factor Correction (PFC) type:: Active
Power protection features:: Over current, Over power, Over voltage, Short circuit, Under voltage
Combined power (+3.3V):: 120 W
Combined power (+12V):: 450 W
Combined power (+5V):: 120 W
Max output current (+3.3V):: 20 A
Max output current (+12V):: 37.5 A
Max output current (+5V):: 20 A
Max output current (-12V):: 0.3 A
Max output current (+5Vsb):: 2.5 A
AC input frequency:: 47 - 63
AC input voltage:: 90 - 265

Ports & interfaces

Motherboard power connector:: 24-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:: 300 mm
SATA power cable length:: 300, 100, 200
Peripheral (Molex) power cable length:: 300, 200
PCI Express power cable length:: 400 mm
Floppy disk drive cable length:: 100 mm
EPS power connector (4+4 pin):: Yes

Performance

Purpose:: PC
80 PLUS certification:: 80 PLUS Bronze
Mean time between failures (MTBF):: 100000 h
Power supply unit (PSU) form factor:: SFX

Design

Fan diameter:: 80 mm
Number of fans:: 1 fan(s)
Product colour:: Black

Weight & dimensions

Weight:: 0.91 kg
Height:: 63.5 mm
Width:: 125 mm
Depth:: 100 mm

Operational conditions

Operating temperature (T-T):: 0 - 40

Packaging data

Package type:: Box

Logistics data

Harmonized System (HS) code:: 84733020

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Instructions

mmo_78509485_1596119620_7062_18851.pdf

silverstone-SST-SX450-B-4254394.pdf

Description

Instructions

mmo_78509485_1596119620_7062_18851.pdf

silverstone-SST-SX450-B-4254394.pdf

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Warehouse	Stock	Delivery to the store	Store Price
WH354	2	13.07.2026 Best delivery	91.99 €

Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
WH109	2	20.07.2026	102.99 €

91.99 €

Stock: 2

Delivery Date: 13.07.2026 Best delivery

Warehouse: WH354

Available only for legal entities

102.99 €

Stock: 2

Delivery Date: 20.07.2026

Warehouse: WH109

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Customer questions

FAQ

How much does the Power Supply Unit Silverstone SX450-B cost, and is it available for purchase?

The price is 91.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 13.07.2026 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 Power Supply Unit Silverstone SX450-B 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 Power Supply Unit Silverstone SX450-B 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 SILVERSTONE 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 SILVERSTONE 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 Silverstone SX450-B?

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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