# Power Supply Unit Chieftec EON ZPU-400S 400 W

**URL:** https://aio.lv/en/product--chieftec-zpu-400s--10914378
**Data updated:** 2025-12-03 12:03 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** CHIEFTEC
**Manufacturer code:** ZPU-400S
**EAN:** 753263078605
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 23.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--chieftec-zpu-400s--10914378

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Chieftec EON ZPU-400S is a reliable 400 W power supply unit designed for PCs and servers. It features a 20+4 pin ATX motherboard connector, ensuring compatibility with most systems. With an AC input voltage range of 200-240 V and a frequency of 50 Hz, it provides stable power. The PSU is 80 PLUS certified for energy efficiency and comes with a 12 cm fan for optimal cooling. Its compact design and compliance with CB, CE, EAC, and RoHS standards make it a safe choice for your setup.

## Long description

EON Series power supplies provide reliable 80 PLUS® 230V EU efficiency, solid steel construction and a quiet 120mm cooling fan. Designed with extra-long native cables and a black coated finish, these units deliver stable power for typical desktop systems while including essential protection and safety features.
Advantages
The EON Series combines competitive pricing with industry-standard efficiency and durable metal housing. Silent 120mm fans reduce noise during operation, while extra-long native cables simplify installation in larger cases. Built-in protection circuits ensure safe operation under common fault conditions.
Key specifications
 Efficiency standard: 80 PLUS® 230V EU
 Cooling: 120mm silent fan
 Construction: full steel housing with black coating
 Cabling: extra-long native cables
 Protections: standard protection and safety features
How to use
Install the EON Series PSU into a compatible ATX case following the case and motherboard manuals. Secure the unit with the provided screws, connect the main 24-pin and CPU 4/8-pin power connectors, and attach peripheral and GPU connectors as required. Ensure proper airflow around the unit and verify cable routing to avoid obstruction of fans and components.
Recommendations
Choose an EON Series model with appropriate wattage for your system components, verify compatibility with your case and connectors, and allow sufficient ventilation. For optimal longevity, keep the unit dust-free and avoid overloading beyond its rated capacity.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 400 W |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Surge protection, Surge and inrush, Short circuit |
| Power factor | 0.9 |
| Combined power (-12V) | 4.8 W |
| Combined power (+5Vsb) | 12.5 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.4 A |
| Max output current (+5Vsb) | 2.5 A |
| Input current | 3 |
| AC input frequency | 50 |
| AC input voltage | 200 - 240 |
| Max output current (+12V1) | 30 A |
| Maximum input current (@220V) | 3 A |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 4 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| ATX power connector (20+4 pin) | Yes |
| CPU power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 1 |
| Cabling type | Non-Modular |
| Motherboard power cable length | 550 mm |
| SATA power cable length | 550, 600 |
| Peripheral (Molex) power cable length | 450, 150 |
| EPS power connector (4+4 pin) | Yes |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC/Server |
| 80 PLUS certification | 80 PLUS |
| ATX version | 2.3 |
| Supported motherboard form factors | ATX |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| On/off switch | Yes |
| Product colour | Black |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | CB, CE, EAC, RoHS |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | ErP |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.15 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 1400 g |
| Package type | Box |

### Logistics data

| Feature | Value |
|---|---|
| Warranty period | 2 year(s) |

## FAQ

### How much does the Power Supply Unit Chieftec EON ZPU-400S cost, and is it available for purchase?

The price is 28.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 303 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 06.07.2026 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. 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 CHIEFTEC 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 CHIEFTEC 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. More information about warranty service: https://aio.lv/en/warranty

### 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, 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 Chieftec EON ZPU-400S?

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.

## Image

https://aio.lv/img/cache/product/10914378/64816173_large.webp