PC Hardware Be Quiet! 850W Straight Power 11 PSU, Fully Modular, Fluid Dynamic Fan, SLI/XFire, 80Gold UK Plug

World Class Quiet and Efficiency
be quiet! Straight Power 11 850W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.

– Virtually inaudible operation thanks to a SilentWings� 3 135mm fan
– Big funnel-shaped fan opening of the PSU case for high airflow intake
– Wire-free on the DC side inside the PSU for enhanced cooling and longevity
– Full cable management for maximum build flexibility
– 80PLUS� Gold certification with an efficiency of up to 93%
– Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DC
– Four high-performance 12V-rails
– Powerful multi-GPU support with four PCI-Express connectors
– Japanese 105�C-rated capacitors ensure stability and reliability
– Power signal stability unmatched in its class
– ErP and Energy Star 6.1 ready
– 5-year manufacturer�s warranty
– Product conception, design and quality control in Germany

– Virtually inaudible SilentWings� 3 135mm fan
– Wire-free design inside the PSU
– 80PLUS� Gold efficiency of up to 93%
– Convenient full cable management

Power
Total power 850 W
Peak power 920 W
AC input voltage 100 – 240
AC input frequency 50 – 60
Input current 10
Power factor 0.99
Power Factor Correction (PFC) type Active
Combined power ( 3.3V) 150 W
Combined power ( 12V) 849.6 W
Combined power ( 5V) 150 W
Combined power (-12V) 6 W
Combined power ( 5Vsb) 15 W
Max output current ( 3.3V) 25 A
Max output current ( 12V1) 21 A
Max output current ( 12V2) 21 A
Max output current ( 12V4) 26 A
Max output current ( 12V3) 26 A
Max output current ( 5V) 25 A
Max output current (-12V) 0.5 A
Max output current ( 5Vsb) 3 A
Power protection features Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time 21.1 ms
Efficiency 93%

Cooling
Fan diameter 13.5 cm
Number of fans 1 fan(s)

Ports & interfaces
Motherboard power cable length 60 cm
SATA power cable length 550 mm
PCI Express power cable length 60 cm
CPU power cable length 70 cm
Motherboard power connector 20 4 pin ATX
Number of SATA power connectors 11
Number of PATA power connectors 4
PCI Express power connectors (6 2 pin) 4
CPU power connector (4 4 pin) Yes
Floppy disk drive connector Yes
Cabling type Modular

Performance
Power supply unit (PSU) form factor ATX
Silent mode Yes
Noise level (quiet mode, 50%) 10.61 dB
Noise level (silent mode, <30%) 9.71 dB Noise level (full-load mode, 100%) 24.98 dB Purpose PC ATX version 2.4 EPS version 2.92 On/off switch Yes Bearing technology FDB Design Colour of product Black Illumination No Technical details Cable management Yes Weight & dimensions Width 150 mm Depth 170 mm Height 86 mm Weight 1.8 kg Certificates 80 PLUS certification 80 PLUS Gold Energy Star certified Yes Certification CE, FCC, T�V, cTUVus, RCM, BSMI, CU RoHS compliance Yes Packaging data Package depth 328 mm Package width 248 mm Package height 102 mm Package weight 3.38 kg Packaging content Screws included Yes Cable ties included Yes Manual Yes Other features Cable management Yes