# Power supply CHIEFTEC GPF-400P TFX 400 W 20+4 pin ATX Grey

**URL:** https://aio.lv/en/product--chieftec-gpf-400p--11106917
**Data updated:** 2026-05-01 23:26 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** CHIEFTEC
**Manufacturer code:** GPF-400P
**EAN:** 753263076809
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 38.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--chieftec-gpf-400p--11106917

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

CHIEFTEC GPF-400P is a TFX form factor power supply rated 400 W with 20+4 pin ATX motherboard connector. Supports 100–240 V AC input and 47–63 Hz frequency, with active cooling via an 80 mm fan and ~85% efficiency. Includes SATA power cables and certifications CE, EAC, FCC, RoHS. Suited for compact PCs and servers requiring a low-profile PSU.

## Long description

CHIEFTEC GPF-400P TFX 400 W is a low-profile power supply designed for compact desktop PCs and small servers that require a TFX form factor. The unit provides up to 400 W of total power, accepts a wide AC input range (100–240 V, 47–63 Hz) and uses an active cooling solution with an 80 mm fan. The supply features a 20+4 pin ATX motherboard connector and includes SATA power cables, meeting common compatibility needs for small form factor builds. Efficiency is approximately 85% and the product complies with CE, EAC, FCC and RoHS standards.
Advantages
The CHIEFTEC GPF-400P offers a compact TFX layout that fits slim or space-constrained cases while delivering 400 W of continuous power. Its universal AC input and active PFC improve voltage stability across global mains conditions. An 80 mm fan provides active cooling in a small chassis, and included SATA power leads simplify connections for modern storage devices. Certification to CE, EAC, FCC and RoHS indicates adherence to common safety and environmental requirements.
Suitable for
Small form factor desktop PCs where TFX power supplies are required
Compact home or office servers with modest power demands
Upgrading or replacing existing TFX PSUs in slim chassis
Systems using SATA storage devices that require onboard SATA power cables
When it may not be suitable
This PSU may not be suitable for high-performance gaming rigs, workstation systems with multiple high-power GPUs, or builds that require more than 400 W of continuous power. Systems needing numerous PCIe power connectors or extended modular cable runs may find the fixed cable lengths and connector set limiting.
Key specifications
Total power: 400 W
AC input voltage: 100–240 V
AC input frequency: 47–63 Hz
Efficiency: ~85%
Form factor: TFX
Motherboard connector: 20+4 pin ATX
Cooling: active, 80 mm fan
Motherboard power cable length: 30 cm
SATA power cable lengths: 150 mm and 350 mm
Colour: Grey
Weight: 1.07 kg
Compliance: CE, EAC, FCC, RoHS
How to use
Install the CHIEFTEC GPF-400P into a case compatible with the TFX form factor following the case manufacturer’s mounting instructions. Connect the 20+4 pin ATX plug to the motherboard’s main power socket and attach SATA power connectors to drives as required. Ensure the AC input is connected to a properly grounded mains outlet within the 100–240 V range and switch the unit on via the system power switch. Monitor system stability and temperatures after installation to confirm adequate airflow and cooling.
What to consider before purchase
Verify your chassis supports the TFX form factor and mounting points
Confirm 400 W total power is sufficient for your CPU, GPU and peripherals
Check connector types and cable lengths against your component layout
Ensure your system does not require additional PCIe power connectors not provided
Usage recommendations
Position the supply to allow unobstructed airflow to the 80 mm fan, avoid blocking ventilation openings, and use a surge protector or UPS to protect against mains spikes. For systems close to the 400 W limit, monitor load and temperatures and consider a higher-rated PSU if future upgrades are planned.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 400 W |
| Efficiency | 85 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Overload, Short circuit, Under voltage, Overheating, Over voltage |
| Power factor | 0.9 |
| Combined power (+3.3V) | 105 W |
| Combined power (+12V) | 336 W |
| Combined power (+5V) | 105 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 10 W |
| Max output current (+3.3V) | 16 A |
| Max output current (+5V) | 18 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2 A |
| Input current | 6.3 |
| AC input frequency | 47 - 63 |
| AC input voltage | 100 - 240 |
| Max output current (+12V2) | 17 A |
| Max output current (+12V1) | 17 A |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| Floppy drive power connector | 1 |
| Number of SATA power connectors | 4 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| Cabling type | Non-Modular |
| Motherboard power cable length | 300 mm |
| SATA power cable length | 150, 350 |
| CPU power cable length | 350 mm |
| Peripheral (Molex) power cable length | 350, 150 |
| Floppy disk drive cable length | 150 mm |
| EPS power connector (4+4 pin) | Yes |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC/Server |
| ATX version | 2.3 |
| Power supply unit (PSU) form factor | TFX |

### Design

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

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | CE, EAC, Federal Communications Commission (FCC), RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.07 kg |
| Height | 65 mm |
| Width | 85 mm |
| Depth | 175 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 1130 g |

## FAQ

### How much does the CHIEFTEC GPF-400P TFX 400 W power supply cost, and is it available for purchase?

The price is 46.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 256 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 30.06.2026 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, 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 CHIEFTEC GPF-400P TFX 400 W 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.

## Image

https://aio.lv/img/cache/product/11106917/68698982_large.webp