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header-product Power Supply Unit Seasonic SSP-400ET2 400 W

Power Supply Unit Seasonic SSP-400ET2 400 W

Power Supply Unit Seasonic SSP-400ET2 Photo 1
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Power Supply Unit Seasonic SSP-400ET2 Photo 9
Power Supply Unit Seasonic SSP-400ET2 Photo 1
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Power Supply Unit Seasonic SSP-400ET2 Photo 8
Power Supply Unit Seasonic SSP-400ET2 Photo 9
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Short description

The Seasonic SSP-400ET2 is a reliable 400 W ATX power supply unit designed for PCs. It supports AC input voltage of 100 - 240 V and frequency of 50 - 60 Hz. With non-modular cabling, it is easy to install. The PSU is 80 PLUS Bronze certified, ensuring energy efficiency. It features active cooling with one fan for optimal performance. The grey color adds a sleek look, while certifications like CE and FCC ensure safety and compliance.
Warranty: 2 Years
SKU: 4042903
Manufacturer: SEASONIC
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Product information

Description

The Seasonic SSP-400ET2 is a 400 W ATX power supply unit designed for desktop and industrial-grade PC systems. It complies with ATX 12 V v2.3 and carries an 80 PLUS Bronze efficiency rating. The unit accepts full AC input (100–240 V, 50–60 Hz) and provides stable, efficient power with active cooling managed by a low-noise fan. It meets the IEC 62368-1 safety standard and includes common safety certifications such as CE and FCC.

Advantages

The SSP-400ET2 offers stable output and energy savings thanks to its 80 PLUS Bronze certification and efficient internal design. Low-noise fan control reduces acoustic impact while ensuring adequate cooling. Full AC input compatibility makes it suitable for worldwide operation, and compliance with IEC 62368-1 plus standard safety certifications provide verified electrical safety and reliability.

Suitable for

  • Desktop PCs and workstations requiring an ATX 12 V v2.3 power supply
  • Industrial or embedded systems built on ATX form factor
  • Systems where energy efficiency and quiet operation are needed

Key specifications

  • Total power: 400 W
  • ATX standard: ATX 12 V v2.3 compliant
  • Efficiency: 80 PLUS Bronze
  • AC input: 100–240 V, 50–60 Hz
  • Cabling: non-modular
  • Cooling: single active fan with low-noise control
  • Colour: Grey
  • Safety: IEC 62368-1 compliant; CE, FCC certifications

How to use

Install the Seasonic SSP-400ET2 into a compatible ATX chassis following the chassis and motherboard manufacturer instructions. Connect the 24-pin ATX main connector, the required CPU and peripheral connectors, and route cables to avoid blocking airflow. Verify AC mains voltage compatibility (100–240 V) before powering on. After connection, power up the system and monitor for normal operation and fan activity.

Usage recommendations

For reliable performance, ensure adequate case ventilation and avoid operating the unit in high-temperature or dusty environments. Use correct connectors for your motherboard and devices and perform periodic inspections for dust buildup. Do not open the power supply housing; refer servicing to qualified technicians.

Specifications

Total power:
400 W
80 PLUS certification:
80 PLUS Bronze
Product colour:
Grey
All features

Power

Total power:
400 W
Power Factor Correction (PFC) type:
Active
Power protection features:
Over power, Over voltage, Short circuit
Combined power (+3.3V):
130 W
Combined power (+12V):
360 W
Combined power (+5V):
130 W
Combined power (-12V):
3.6 W
Combined power (+5Vsb):
12.5 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):
2.5 A
AC input frequency:
50 - 60
AC input voltage:
100 - 240
Max output current (+12V2):
18 A
Max output current (+12V1):
18 A

Ports & interfaces

Floppy disk drive connector:
Yes
Cabling type:
Non-Modular

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Bronze
Mean time between failures (MTBF):
100000 h
ATX version:
2.3
Power supply unit (PSU) form factor:
ATX

Design

Number of fans:
1 fan(s)
Cooling type:
Active
Fan location:
Top
Product colour:
Grey

Certificates

Certification:
CE, FCC, RCM IEC 62368-1

Weight & dimensions

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

Safety regulation & standards

Safety:
cTUVus, TUV, CB, CCC, BSMI

Description

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Customer questions

FAQ

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 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, 80 plus certification, 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 Seasonic SSP-400ET2?

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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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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