# Power supply CHIEFTEC PSF-400B 400W ATX 2.3, 80 PLUS Bronze, 24-pin, 80 mm fan

**URL:** https://aio.lv/en/product--chieftec-psf-400b--170656
**Data updated:** 2026-01-21 10:49 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** CHIEFTEC
**Manufacturer code:** PSF-400B
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 60.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 50.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--chieftec-psf-400b--170656

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

CHIEFTEC PSF-400B is a 400W ATX 2.3 power supply for PCs with 80 PLUS Bronze efficiency (87%) and active PFC. Non-modular cabling includes a 24‑pin ATX motherboard connector, 8‑pin EPS, one 6‑pin PCIe, three Molex, four SATA and one floppy connector. Features a side-mounted 80 mm fan, 100–240 V input and protection against short circuits.

## Long description

The PSF-400B power supply combines a traditional ATX-like layout with modern compatibility, certified by TÜV and meeting ENERGY STAR 5.0 requirements. Designed for fixed 230V European mains, it is intended for reliable, efficient operation in contemporary IT environments and industrial PC installations.
Advantages
The PSF-400B supports current power-supply standards while preserving a familiar layout, provides TÜV certification for safety and compliance, and meets ENERGY STAR 5.0 efficiency criteria. Its fixed 230V configuration simplifies deployment in European systems. The cooling fan is engineered to exhaust air to the rear, which is suitable for compact 19” IPC/UNC chassis with limited height.
Key specifications
Model: PSF-400B
Input voltage: fixed 230V (European standard)
Certifications: TÜV; ENERGY STAR 5.0 compliant
Form factor compatibility: suitable for 19” IPC / UNC solutions (2U–4U)
Cooling: fan configured to blow air out the rear
How to use
Install the PSF-400B in 19” IPC/UNC chassis with 2U to 4U height where rear exhaust is required. Connect to a stable 230V mains supply and follow the chassis manufacturer’s installation instructions to secure the PSU and route cables. Ensure the rear airflow path is unobstructed to maintain cooling performance.
Recommendations
Use the PSF-400B in rack-mounted or embedded systems where the PSU position is constrained vertically and rear exhaust is necessary; verify chassis compatibility and provide adequate ventilation around the rear exhaust port.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 400 W |
| Efficiency | 87 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Short circuit, Overload |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 360 W |
| Combined power (+5V) | 100 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 12.5 W |
| Max output current (+3.3V) | 16 A |
| Max output current (+5V) | 15 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2.5 A |
| AC input frequency | 47 - 63 |
| AC input voltage | 100 - 240 |
| Max output current (+12V1) | 30 A |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 24-pin ATX |
| PCI Express power connectors (6-pin) | 1 |
| Floppy drive power connector | 1 |
| Number of SATA power connectors | 4 |
| Peripheral (Molex) power connectors (4-pin) | 3 |
| EPS power connector (8-pin) | Yes |
| Cabling type | Non-Modular |
| Motherboard power cable length | 450 mm |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS Bronze |
| ATX version | 2.3 |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 80 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan location | Side |
| Product colour | Metallic |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | ENERGY STAR |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 87 mm |
| Width | 150 mm |
| Depth | 140 mm |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

## FAQ

### How much does the CHIEFTEC PSF-400B 400W ATX PSU cost, and is it available for purchase?

The price is 60.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 285 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 22.06.2026 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. 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, efficiency, 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 CHIEFTEC PSF-400B 400W ATX PSU?

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/170656/64770170_large.webp