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Asrock SL-850GW Steel Legend power supply unit 850 W 20+4 pin ATX ATX White

Asrock SL-850GW Steel Legend, 850 W, Overheating, Over current, Overload, Over voltage, Short circuit, 20+4 pin ATX, 60...Read full description ↓

Best offerPrice trend

£108

-18%
Price trend
Detailed analysis ›
Price history of Asrock SL-850GW Steel Legend power supply unit 850 W 20+4 pin ATX ATX White over the last 3 months
DatePrice
17 July 2026£132
18 July 2026£125
27 July 2026£123
1 August 2026£136
3 August 2026£135
4 August 2026£122
10 August 2026£121
17 August 2026£121
18 August 2026£128
24 August 2026£123
1 September 2026£123
7 September 2026£124
16 September 2026£138
21 September 2026£144
23 September 2026£130
26 September 2026£129
26 September 2026£107
28 September 2026£107
28 September 2026£108
30 September 2026£108
1 October 2026£108

Compare Asrock SL-850GW Steel Legend power supply unit 850 W 20+4 pin ATX ATX White prices UK

Product Information

Native PCIe 12V-2x6 Cable
Dual Color Design

With ASRock Classic Green connectors, users can easily see if the connector has been plugged properly.

iCOOL Intelligent Fan Control Mode
●iCOOL Mode ON: The power supply runs more efficiently. The fan stays off during low to medium loads, reducing noise and improving energy efficiency. The fan only activates when the load or temperature increases.
●iCOOL Mode OFF: The fan runs continuously, regardless of load. This may increase noise slightly but provides consistent cooling and better performance under heavy loads.

80 PLUS & CYBENETICS CERTIFIED
The Steel Legend series power supply unit offers options of 1000W, 850W, 750W, and 650W, available in "Steel Black" and "Steel White" ideal for mainstream systems. Certified for 80 PLUS Gold efficiency and Cybenetics Platinum & Gold rating, along with LAMBDA A+/A acoustic certification, it ensures outstanding energy performance.

CYBENETICS LAMBDA A+
The Steel Legend series power operates at less than 20 dB of noise on average, earning the prestigious Cybenetics Lambda A+ certification.
This recognition underscores the Steel Legend series' outstanding noise control performance, making it an exceptional choice for users seeking ultra-quiet operation.

135mm Fluid Dynamic Bearing Fan
The fluid seal design and the herringbone structure provides an extremely long lifespan and noise minimization.

Japanese Capacitors
105 °C Japanese-made Capacitor and Solid Capacitor, makes prolonged life span possible.

Safety First with ASRock
Full suite of protections to keep all components safe during normal to extreme power levels.
ASRock offers an outstanding 10 –Year warranty, guaranteeing long term reliable and peace of mind operation.

Power Supply Units Asrock

Product

Name
Asrock SL-850GW Steel Legend power supply unit 850 W 20+4 pin ATX ATX White
Brand
Asrock

Power

Total power
850 W
Power protection features
Overheating, Over current, Overload, Over voltage, Short circuit

Weight & dimensions

Width
150 mm
Depth
150 mm
Height
86 mm

Ports & interfaces

Motherboard power connector
20+4 pin ATX
Peripheral (Molex) power connectors (4-pin)
3
Motherboard power cable length
60 cm
Number of SATA power connectors
9
SATA power cable length
120,450 mm
PCI Express power connectors (6+2 pin)
3
PCI Express power cable length
60 cm
CPU power connector (4+4 pin)
Yes
CPU power cable length
65 cm
Number of EPS connectors
2
Cabling type
Fully-Modular

Performance

Purpose
PC
Power supply unit (PSU) form factor
ATX
80 PLUS certification
80 PLUS Gold
ATX version
3.1
Noise level
20 dB
Bearing technology
FDB
Mean time between failures (MTBF)
100000 h

Design

Product colour
White
Cooling type
Active
Fan diameter
13.5 cm
Number of fans
1 fan(s)
On/off switch
Yes

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