# Power Supply Unit Silverstone ST40F-ES230 400 W

**URL:** https://aio.lv/en/product--silverstone-sst-st40f-es230--928845
**Data updated:** 2025-12-29 05:22 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** SILVERSTONE
**Manufacturer code:** SST-ST40F-ES230
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 34.70 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--silverstone-sst-st40f-es230--928845

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Silverstone ST40F-ES230 is a reliable 400 W power supply unit designed for PCs. It features a 20-pin ATX connector, non-modular cabling, and an AC input voltage range of 180 - 264 V. With an 80 PLUS certification, it ensures efficient power delivery. The unit includes a 12 cm fan for optimal cooling and operates within a frequency range of 47 - 63 Hz. Its compact design and compliance with RoHS standards make it a great choice for your system.

## Long description

The Silverstone ST40F-ES230 is a 400 W power supply unit designed for desktop PCs that require reliable, continuous power. It offers 80 PLUS efficiency (up to 85% at 230 V), a single powerful +12V rail and a 120 mm cooling fan in a compact black housing. The unit uses a standard 20-pin ATX motherboard connector and non-modular cabling, supports an AC input range of 180–264 V and a frequency range of 47–63 Hz, and is built to operate continuously at elevated ambient temperatures.
Advantages
The ST40F-ES230 combines established design and quality components to support 24/7 operation at temperatures up to 40 °C while maintaining stable output and low acoustic noise. Its 80 PLUS certification ensures efficient power delivery, and the single +12V rail with standard 8-pin/6-pin PCI‑E connectors allows it to power a wide range of systems, including those with dedicated graphics cards. The compact footprint and RoHS compliance make it suitable for standard desktop builds.
Suitable for
Home and office desktop PCs
Budget gaming builds with mid-range graphics cards
Systems requiring continuous 24/7 operation
Small-form-factor cases compatible with a 20-pin ATX connector
Key specifications
Total power: 400 W
Efficiency: up to 85% (80 PLUS)
Motherboard connector: 20-pin ATX
Fan: 120 mm
AC input voltage: 180–264 V
Frequency range: 47–63 Hz
Weight: 1.26 kg
Colour: Black
How to use
Install the power supply into a compatible desktop chassis following the motherboard and case manufacturer guidelines. Connect the 20-pin ATX main power connector to the motherboard and attach the available PCI‑E connectors to compatible graphics cards as required. Ensure the PSU is connected to an appropriate AC source within the 180–264 V range. Allow adequate airflow around the 120 mm fan and maintain ambient temperature below 40 °C for continuous operation.
Usage recommendations
For reliable, long-term operation, use the ST40F-ES230 in systems whose total component power draw remains comfortably below the 400 W rating, ensure good case ventilation, and avoid exposing the unit to temperatures above 40 °C. Regularly check connections and dust buildup on the fan to maintain efficiency and low noise levels.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 400 W |
| Efficiency | 85 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Short circuit, Over voltage, Over power |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 360 W |
| Combined power (+5V) | 100 W |
| Max output current (+3.3V) | 17 A |
| Max output current (+12V) | 30 A |
| Max output current (+5V) | 16 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2.5 A |
| Input current | 3 |
| AC input frequency | 47 - 63 |
| AC input voltage | 180 - 264 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20-pin ATX |
| Floppy disk drive connector | Yes |
| PCI Express connector | Yes |
| PCI Express power connectors (6-pin) | 2 |
| 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 | 500 mm |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS |
| Mean time between failures (MTBF) | 100000 h |
| Noise level | 18 dB |
| Power supply unit (PSU) form factor | ATX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| Number of fans | 1 fan(s) |
| On/off switch | Yes |
| Product colour | Black |

### Certificates

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.26 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 40 |

### Logistics data

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

## FAQ

### How much does the Power Supply Unit Silverstone ST40F-ES230 cost, and is it available for purchase?

The price is 41.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 03.07.2026 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 SILVERSTONE 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 SILVERSTONE 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, 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 Silverstone ST40F-ES230?

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/928845/64777285_large.webp