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Silverstone SST-DA850R-GMA power supply unit 850 W 20-pin ATX ATX Black

Silverstone SST-DA850R-GMA, 850 W, 90 - 264 V, 47 - 63 Hz, Active, 110 W, 846 W

Best offerPrice trend

£87.02

-38%
Price trend
Detailed analysis ›
Price history of Silverstone SST-DA850R-GMA power supply unit 850 W 20-pin ATX ATX Black over the last 3 months
DatePrice
28 July 2026£140
28 July 2026£127
2 August 2026£140
2 August 2026£127
8 August 2026£140
8 August 2026£127
19 August 2026£140
19 August 2026£127
29 August 2026£140
29 August 2026£127
9 September 2026£140
9 September 2026£127
20 September 2026£140
20 September 2026£127
26 September 2026£104
26 September 2026£87.02

Compare Silverstone SST-DA850R-GMA power supply unit 850 W 20-pin ATX ATX Black prices UK

Product Information

Specially designed cover designed to effectively dissipate the residual heat

Flat cables have much greater flexibility to allow for tighter folding and management of cables

12V-2x6 PCIe connector supports ATX 3.0 specifications
The 12+4 pin (12V-2x6) design is capable of withstanding power failure caused by a running graphics card’s instantaneous peak power consumption, whilst providing higher stability and efficiency power output for high-end systems

Designed for 80 PLUS Gold level of efficiency to reduce wasted heat and save on electricity

Silent running 120mm fan with advanced semi-fanless operation

Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking

Advanced protections for safety and security
- Over current protection
- Over power protection
- Over voltage protection
- Short circuit protection
- Under voltage protection
- Over temperature protection

Power Supply Units Silverstone

Product

Name
Silverstone SST-DA850R-GMA power supply unit 850 W 20-pin ATX ATX Black

Power

Total power
850 W
AC input voltage
90 - 264 V
AC input frequency
47 - 63 Hz
Power factor
0.9
Power Factor Correction (PFC) type
Active
Combined power (+3.3V)
110 W
Combined power (+12V)
846 W
Combined power (+5V)
110 W
Max output current (+3.3V)
20 A
Max output current (+12V)
70.5 A
Max output current (+5V)
20 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
2.5 A
Efficiency
89%
Power protection features
Over current

Operational conditions

Operating temperature (T-T)
0 - 50 °C

Weight & dimensions

Width
150 mm
Depth
140 mm
Height
86 mm
Weight
2.13 kg

Ports & interfaces

Motherboard power connector
20-pin ATX
Peripheral (Molex) power connectors (4-pin)
4
Number of SATA power connectors
8
EPS power connector (8-pin)
Yes
PCI Express power connectors (6-pin)
4
Floppy disk drive connector
Yes
Cabling type
Fully-Modular

Packaging data

Package type
Box

Performance

Purpose
PC/Server
Power supply unit (PSU) form factor
ATX
80 PLUS certification
80 PLUS Gold
Bearing technology
FDB
Mean time between failures (MTBF)
100000 h

Design

Product colour
Black
Fan diameter
12 cm

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