# Power Supply Unit Silverstone ST30SF 300W

**URL:** https://aio.lv/en/product--silverstone-sst-st30sf-v-20--928721
**Data updated:** 2026-01-14 12:57 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** SILVERSTONE
**Manufacturer code:** SST-ST30SF v 2.0
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Silverstone ST30SF is a compact 300W SFX power supply unit designed for PCs. It features a 20+4 pin ATX motherboard connector, active cooling with a 9.2 cm fan, and 80 PLUS Bronze certification for energy efficiency. With an AC input voltage range of 90 - 264 V and a frequency of 47 - 63 Hz, it ensures stable power delivery. The PSU includes SATA power cables of varying lengths (100, 200, 300 mm) and measures 125 mm in width, 100 mm in depth, and 63.5 mm in height.

## Long description

The Silverstone ST30SF 300W is a compact SFX power supply unit intended for small-form-factor PC builds. This 300 W PSU provides a single 20+4 pin ATX motherboard connector, active cooling via a 92 mm fan, and 80 PLUS Bronze efficiency. It accepts an AC input voltage range of 90–264 V at 47–63 Hz and ships with SATA power leads of 100, 200 and 300 mm. Its small enclosure (125 mm × 100 mm × 63.5 mm) and black finish are suited to space-constrained systems that require reliable, continuous power delivery.
Advantages
The unit combines a compact SFX form factor with 80 PLUS Bronze efficiency, delivering up to 300 W in a small footprint. Active cooling with a 92 mm fan helps maintain stable temperatures under typical load levels. The wide AC input range supports international mains voltages and the included SATA power cables of varying lengths simplify internal cable routing. The black finish and 1 kg weight make the PSU easy to install in many small enclosures.
Suitable for
 Mini-ITX or other small-form-factor desktop PC builds
 Home theater PCs (HTPC) and compact multimedia systems
 Office workstations with modest power requirements
 Replacement or upgrade in cases that support SFX power supplies
Key specifications
 Total output power: 300 W
 Efficiency: approximately 85% (80 PLUS Bronze)
 Motherboard connector: 20+4 pin ATX
 Cooling: active, 92 mm fan
 AC input voltage: 90–264 V
 AC input frequency: 47–63 Hz
 Included SATA power cable lengths: 100 mm, 200 mm, 300 mm
 Dimensions (W × D × H): 125 mm × 100 mm × 63.5 mm
 Colour: black
 Weight: 1 kg
How to use
Install the Silverstone ST30SF into a compatible SFX or SFX-to-ATX adapter-equipped case according to the case manufacturer’s instructions. Connect the 20+4 pin ATX connector to the motherboard and route the provided SATA power cables to storage devices as needed. Ensure the AC mains input is within the specified 90–264 V range and that the case allows adequate airflow for the 92 mm fan. After connections are secured, power on the system and verify stable operation under typical workload conditions.
Usage recommendations
Use this PSU in systems with total component power draw within the 300 W rating and maintain unobstructed airflow around the fan. For higher-power components or overclocked systems, consider a higher-wattage unit. Periodically inspect cables and connectors for secure seating and dust accumulation to preserve cooling efficiency and long-term reliability.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 300 W |
| Efficiency | 85 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Over current, Over power, Over voltage, Short circuit, Under voltage |
| Combined power (+3.3V) | 90 W |
| Combined power (+12V) | 300 W |
| Combined power (+5V) | 90 W |
| Max output current (+3.3V) | 16 A |
| Max output current (+5V) | 16 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 47 - 63 |
| AC input voltage | 90 - 264 |
| Max output current (+12V1) | 25 A |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| PCI Express power connectors (6-pin) | 1 |
| Floppy drive power connector | 1 |
| Number of SATA power connectors | 3 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| EPS power connector (8-pin) | Yes |
| Cabling type | Non-Modular |
| Motherboard power cable length | 300 mm |
| SATA power cable length | 300, 200, 100 |
| Peripheral (Molex) power cable length | 300, 200 |
| PCI Express power cable length | 400 mm |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS Bronze |
| Mean time between failures (MTBF) | 100000 h |
| Noise level | 18 dB |
| ATX version | 2.4 |
| Power supply unit (PSU) form factor | SFX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 92 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan location | Top |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1 kg |
| Height | 63.5 mm |
| Width | 125 mm |
| Depth | 100 mm |

### Operational conditions

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

### Packaging data

| Feature | Value |
|---|---|
| Package type | Box |

## 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 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 Silverstone ST30SF?

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

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