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header-product Seasonic PRIME Fanless PX Power Supply Unit 450 W
169.49 €

Seasonic PRIME Fanless PX Power Supply Unit 450 W

Seasonic PRIME Fanless PX Power Supply Photo 1
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Seasonic PRIME Fanless PX Power Supply Photo 10
Seasonic PRIME Fanless PX Power Supply Photo 1
Seasonic PRIME Fanless PX Power Supply Photo 2
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Seasonic PRIME Fanless PX Power Supply Photo 8
Seasonic PRIME Fanless PX Power Supply Photo 9
Seasonic PRIME Fanless PX Power Supply Photo 10
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Short description

The Seasonic PRIME Fanless PX is a 450 W ATX power supply designed for PCs. It features a 20+4 pin motherboard connector, passive cooling, and 80 PLUS Platinum certification for high efficiency. With an AC input voltage range of 100-240 V and a frequency of 50-60 Hz, it ensures stable power delivery. The power cables are long enough for easy installation, making it a reliable choice for silent operation.
Available at price 169.49 €: 24 pcs.
Total available for order: 49 pcs.
Warranty: 2 Years
SKU: 3467452
Manufacturer: SEASONIC
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
15.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
20.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 2.75 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
20.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 4.71 euros per month
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Product information

Description

The Seasonic PRIME Fanless PX Power Supply Unit 450 W is a fully passive ATX power supply designed for silent PC operation. It delivers up to 450 W of continuous power with 80 PLUS Platinum efficiency and a 20+4 pin ATX motherboard connector. Passive cooling replaces internal fans to eliminate fan noise while high-quality components and an optimized circuit design ensure stable and clean power delivery for sensitive and high-performance systems. Fully modular cables simplify cable management during installation.

Advantages

The PRIME Fanless PX features 80 PLUS Platinum efficiency, providing up to 92% efficiency at typical load points and reducing wasted energy. Seasonic’s micro tolerance load regulation keeps output voltages within a tight range (under 0.5% load regulation) for improved electrical stability. Fanless, passive cooling removes moving parts and audible noise, and the fully modular cable set allows flexible and tidy internal cabling.

Suitable for

  • Silent home or office PCs where noise must be minimized
  • Compact or HTPC systems that benefit from fanless operation
  • Workstations and systems requiring clean, stable power for sensitive components
  • Enthusiast builds where cable management and efficiency are priorities

Key specifications

  • Total power: 450 W
  • 80 PLUS certification: 80 PLUS Platinum
  • Motherboard connector: 20+4 pin ATX
  • AC input: 100–240 V, 50–60 Hz
  • Product colour: Black

How to use

Install the Seasonic PRIME Fanless PX like a standard ATX PSU: secure it in the case’s PSU mounting area, connect the 20+4 pin motherboard cable and other modular cables to components as required, and confirm correct AC input connection. Because the unit is fanless, ensure your PC case has adequate airflow or passive cooling paths to allow heat dissipation from the PSU and surrounding components.

Usage recommendations

Place the power supply in a location within the case that allows unobstructed airflow for passive cooling. Avoid covering vents or installing the unit in poorly ventilated enclosures. For systems approaching the unit’s maximum capacity, monitor temperatures and system stability to ensure safe operation.

Specifications

Total power:
450 W
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Platinum
Fan diameter:
135 mm
Product colour:
Black
All features

Power

Total power:
450 W
Power protection features:
Short circuit, Under voltage, Over voltage, Over power, Over current
Combined power (+3.3V):
100 W
Combined power (+12V):
444 W
Combined power (+5V):
100 W
Combined power (-12V):
3.6 W
Combined power (+5Vsb):
15 W
Max output current (+3.3V):
20 A
Max output current (+12V):
37 A
Max output current (+5V):
20 A
Max output current (-12V):
0.3 A
Max output current (+5Vsb):
3 A
AC input frequency:
50 - 60
AC input voltage:
100 - 240

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
Number of SATA power connectors:
2
Peripheral (Molex) power connectors (4-pin):
2
PCI Express power connectors (6+2 pin):
2
CPU power connectors (8-pin):
2
Cabling type:
Fully-Modular
Motherboard power cable length:
610 mm
SATA power cable length:
810, 860
CPU power cable length:
650 mm
Peripheral (Molex) power cable length:
470, 690
PCI Express power cable length:
750 mm

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Platinum
Mean time between failures (MTBF):
150000 h
Supported motherboard form factors:
ATX
Power supply unit (PSU) form factor:
ATX

Design

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

Certificates

Certification:
cTUVus, TUV, CB, CCC, BSMI, EAC, CE, WEEE, ErP Lot 6, REACH
Compliance certificates:
RoHS

Technical details

Sustainability certificates:
ENERGY STAR

Weight & dimensions

Height:
86 mm
Width:
150 mm
Depth:
140 mm

Operational conditions

Operating temperature (T-T):
0 - 50

Packaging data

Package type:
Box

Reasons to buy

80 PLUS® PLATINUM

The PRIME Platinum Series achieves 80 PLUS® Platinum certification with its 92% efficiency at 50% system load.80 PLUS® PLATINUM

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Stock data
Warehouse Stock Delivery to the store Store Price
EU16 24 15.07.2026 Best delivery 169.49 €
WH334 1 15.07.2026 Best delivery 183.99 €
WH94 20 15.07.2026 Best delivery 185.99 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 3 29.07.2026 192.49 €
169.49 €
Stock: 24
Delivery Date: 15.07.2026 Best delivery
Warehouse: EU16
183.99 €
Stock: 1
Delivery Date: 15.07.2026 Best delivery
Warehouse: WH334
185.99 €
Stock: 20
Delivery Date: 15.07.2026 Best delivery
Warehouse: WH94
190.99 €
Stock: 1
Delivery Date: 15.07.2026 Best delivery
Warehouse: WH337
Available only for legal entities
192.49 €
Stock: 3
Delivery Date: 29.07.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Seasonic PRIME Fanless PX Power Supply cost, and is it available for purchase?

The price is 169.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 15.07.2026 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 Seasonic PRIME Fanless PX 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 Seasonic PRIME Fanless PX 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 SEASONIC 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 SEASONIC 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, motherboard power connector, 80 plus certification, fan diameter, 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 Seasonic PRIME Fanless PX 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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