SilverStone Extreme SST-EX850R-PM 850W - PSU, 80 Plus Platinum
Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| Floppy disk drive connector | ![]() |
| PCI Express connector | ![]() |
| Motherboard power connector | 20-pin ATX |
| Floppy drive power connector | 1 |
| Number of SATA power connectors | 8 |
| Peripheral (Molex) power connectors (4-pin) | 3 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 2 |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 16 |
| Cabling type | Fully-Modular |
| Motherboard power cable length | 30 cm |
| SATA power cable length | 100,200,300 mm |
| CPU power cable length | 60 cm |
| Peripheral (Molex) power cable length | 200,300 mm |
| PCI Express power cable length | 60 cm |
| Floppy disk drive cable length | 10 cm |
| PCI Express power connectors (12+4 pin) | 1 |
| Weight & dimensions | |
| Weight | 1.6 kg |
| Height | 63.5 mm |
| Width | 125 mm |
| Depth | 100 mm |
| Energy management | |
| Peak power | 850 W |
| Nominal power | 850 W |
| Efficiency | 91% |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Power factor | 0.9 |
| Power Factor Correction (PFC) type | Active |
| 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 Hz |
| AC input voltage | 180 - 264 V |
| Total power | 850 W |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 50 °C |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Platinum |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan diameter | 9.2 cm |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Form factor | SFX |
| Purpose | PC |
| Bearing technology | FDB |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | SFX |
| Features | |
| Product type | Power supply unit |
| EAN | 4710679815664 |
The SilverStone SST-EX850R-PM is a power supply unit engineered for compact, high-performance systems. It provides 850 watts of continuous power within the SFX form factor, operating on a single +12V rail to support demanding CPUs and GPUs. This unit is compliant with the Intel SFX12V V4.0 standard and includes a native PCIe 5.0 12VHPWR connector, ensuring compatibility with current-generation graphics cards. The fully modular design uses flat, flexible cables, which can simplify cable routing and improve airflow in space-constrained enclosures.
This power supply holds a Cybenetics Platinum efficiency rating, indicating minimal energy waste and reduced heat generation. Cooling is managed by a 92 mm Fluid Dynamic Bearing (FDB) fan, which features an intelligent stop function that ceases fan rotation under low to moderate loads for silent operation. The internal construction utilizes all Japanese capacitors for increased reliability and component longevity. A comprehensive set of safety protections is built-in, including over-current, over-power, over-voltage, short-circuit, over-temperature, and under-voltage safeguards.
Key Features:- Delivers 850W of continuous power output
- Features a Cybenetics Platinum efficiency rating
- Built in the compact SFX form factor
- Utilizes a fully modular design with flat cables
- Equipped with a 92 mm FDB fan with a semi-passive mode
- Includes a native PCIe 5.0 12VHPWR connector
- Offers a full suite of power protection features
- Measures 125 mm x 63.5 mm x 100 mm
Estimated delivery: 28.03 - 03.04
Today: 10:00 - 18:00
Estimated delivery: 28.03 - 03.04
Today: 09:00 - 17:00
Estimated delivery: 28.03 - 03.04
Today: 10:00 - 17:00
Estimated delivery: 28.03 - 03.04
Today: 10:00 - 18:00
Estimated delivery: 28.03 - 03.04
Today: 10:00 - 17:00
Estimated delivery time: 28.03 - 03.04
Estimated delivery time: 28.03 - 02.04
Estimated delivery time: 29.03 - 03.04
Estimated delivery time: 29.03 - 03.04
Estimated delivery time: 29.03 - 02.04
Estimated delivery time: 28.03 - 03.04
Estimated delivery time: 28.03 - 03.04
Estimated delivery time: 29.03 - 02.04
- manual pdf (English)
- manual pdf (English)
- leaflet (English)


