# Power Supply Unit Silverstone SST-EX850R-PM 850 W

**URL:** https://aio.lv/en/product--silverstone-sst-ex850r-pm--8152495
**Data updated:** 2025-12-30 06:12 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** SILVERSTONE
**Manufacturer code:** SST-EX850R-PM
**EAN:** 4710679815664
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 299.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 247.51 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--silverstone-sst-ex850r-pm--8152495

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Silverstone SST-EX850R-PM is an 850 W SFX power supply designed for PCs. It features a 20-pin ATX connector, active cooling with a 13.5 cm fan, and a wide AC input voltage range of 180-264 V. The PSU includes SATA power cables of varying lengths (100, 200, 300 mm) and has a compact form factor with dimensions of 125 mm x 100 mm x 63.5 mm. The FDB bearing technology ensures quiet operation, making it an excellent choice for high-performance systems.

## Long description

The Silverstone SST-EX850R-PM 850 W is a compact SFX power supply designed for high-performance PCs. It supports the Gen5 12VHPWR PCIe connector and complies with the Intel SFX 12V V4.0 specification. The unit delivers a single powerful +12V rail, uses all-Japanese electrolytic capacitors and carries Cybenetics Platinum efficiency certification. Fully modular flat array cables and a 135 mm FDB cooling fan with intelligent stop and delayed shut-off provide flexible installation and quiet operation.
Advantages
The PSU provides an 850 W output with a robust single +12V rail suited for future high-end GPU upgrades and overclocking. It includes modern connectivity such as the Gen5 12VHPWR PCIe connector and a 20-pin ATX motherboard connector. High-quality Japanese electrolytic capacitors and Cybenetics Platinum efficiency support reliable, efficient performance while the fully modular flat cables simplify cable management. The ultra-silent 135 mm Fluid Dynamic Bearing fan with intelligent stop reduces noise during low loads.
Suitable for
Compact SFX gaming PCs and small-form-factor workstations
High-performance builds requiring an 850 W single +12V rail
Systems with modern Gen5 12VHPWR PCIe graphics cards
Environments where quiet cooling and modular cabling are desired
Key specifications
Total power: 850 W
Efficiency: 91% (Cybenetics Platinum)
Connector: Gen5 12VHPWR PCIe; 20-pin ATX motherboard connector
Form factor: SFX; dimensions 125 x 100 x 63.5 mm
Fan: 135 mm Fluid Dynamic Bearing (FDB) with intelligent stop
Cabling: Fully modular, flat array cables; SATA power cable lengths: 100 / 200 / 300 mm
Capacitors: All Japanese electrolytic capacitors
Weight: 1.6 kg
Input voltage range: 180–264 V AC
Color: Black
Protections: Over-current, over-power, over-voltage, short circuit, under-voltage, over-temperature
How to use
Install the Silverstone SST-EX850R-PM into an SFX-compatible case following the case and motherboard manuals. Connect the 20-pin ATX cable to the motherboard and use the Gen5 12VHPWR PCIe connector for supported graphics cards. Attach SATA and peripheral cables as required using the fully modular connectors. Ensure the AC input is within the specified 180–264 V range before powering on. The fan will operate automatically and enter intelligent stop mode at low load; delayed shut-off prevents abrupt stops.
Usage recommendations
Use this PSU in systems that match its SFX form factor and power requirements. Verify compatibility of the Gen5 12VHPWR connector with your GPU and keep ventilation unobstructed to maintain cooling and prolong component life.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 850 W |
| Efficiency | 91 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Power factor | 0.9 |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 850 W |
| Combined power (+5V) | 100 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 70.8 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| 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 |
| Floppy drive power connector | 1 |
| Number of SATA power connectors | 8 |
| Peripheral (Molex) power connectors (4-pin) | 3 |
| CPU power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 16 |
| Cabling type | Fully-Modular |
| Motherboard power cable length | 300 mm |
| SATA power cable length | 100, 300, 200 |
| CPU power cable length | 400 mm |
| Peripheral (Molex) power cable length | 200, 300 |
| Floppy disk drive cable length | 100 mm |
| PCI Express power connectors (12+4 pin) | 1 |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | No |
| Mean time between failures (MTBF) | 100000 h |
| Bearing technology | FDB |
| Silent mode | Yes |
| Power supply unit (PSU) form factor | SFX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 135 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.6 kg |
| Height | 63.5 mm |
| Width | 125 mm |
| Depth | 100 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 50 |

## FAQ

### How much does the Power Supply Silverstone SST-EX850R-PM cost, and is it available for purchase?

The price is 299.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 16.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Power Supply Silverstone SST-EX850R-PM be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 SST-EX850R-PM?

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/8152495/64807566_large.webp