be quiet! BN308 Straight Power 11 850W BN308

80 PLUS� PLATINUM CERTIFIED
One of the highest efficiency certificates available
Straight Power 11 Platinum 850W is certified with 80 PLUS Platinum efficiency, reaching up to 94%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts.

SILENT WINGS 3 FAN
Provides virtually inaudible operation
The high-end Silent Wings 3 fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption.

FUNNEL-SHAPED FAN OPENING
Higher cooling performance
The fan inlet of the Straight Power 11 Platinum 850W is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.

WIRE-FREE DESIGN INSIDE THE PSU
Pushing the longevity of components to a maximum
An absolute innovation: The Straight Power 11 Platinum 850W is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum.

MODULAR CABLES
Utmost convenience and compatibility
Thanks to the modular cables, all cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.

STATE-OF-THE-ART TECHNOLOGIES
Rock-steady signal stability and efficiency
Experience the most technologically advanced power supply be quiet! has ever built! Using an advanced full bridge, LLC and Synchronous Rectifier (SR) technology it provides unmatched signal stability and unbeatable power efficiency. The DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions ensures reliable operation for the next generation of processors and graphics cards.

JAPANESE 105� CAPACITORS
A testament to high quality
Only the best components are used in Straight Power 11 Platinum 850W. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105�C, ensuring stability, reliability and a long operating life.

Design



Cooling type



Active


Fan diameter



13.5 cm


Fan location



Top


Fan speed



0 - 2100 RPM


Number of fans



1 fan(s)


Product colour



Black


Logistics data



Harmonized System (HS) code



84733020


Master (outer) case gross weight



23.28 kg


Master (outer) case height



34.6 cm


Master (outer) case length



65.1 cm


Master (outer) case width



28.2 cm


Other features



Cable ties included



Yes


EPS cable length



70 cm


Noise level (full-load mode, 100%)



22 dB


Noise level (quiet mode, 50%)



7.9 dB


Noise level (silent mode, 30%)



7.7 dB


Parallel processing technology support



Dual Graphics


Screws included



Yes


Package dimensions



Depth (package,cm)



32.8 cm


Gross Weight (Package, kg)



2.39 kg


Height (package,cm)



10.2 cm


Width (package,cm)



24.8 cm


Packaging data



Manual



Yes


Performance



80 PLUS certification



80 PLUS Platinum


ATX version



2.51


Bearing technology



FDB


Certification



CE, CB, T�V, FCC, cTUVus, RCM (Australia), BSMI, CU (Russia), CCC


EPS version



2.92


Mean time between failures (MTBF)



100000 Hour


Noise level



22 dB


Power supply unit (PSU) form factor



ATX


Purpose



PC


Ports & interfaces



Cabling type



Modular


EPS power connector (4+4 pin)



Yes


EPS power connector (8-pin)



Yes


Floppy drive power connector



1


Motherboard power cable length



60 cm


Motherboard power connector



20+4 pin ATX


Number of PATA power connectors



4


Number of SATA power connectors



11


PCI Express power cable length



60 cm


PCI Express power connectors (6+2 pin)



4


Power



AC input frequency



50 - 60 Hz


AC input voltage



100 - 240 V


Combined power (+12V)



849.6 Watt


Combined power (+3.3V)



150 Watt


Combined power (+5V)



150 Watt


Combined power (+5Vsb)



15 Watt


Combined power (-12V)



6 Watt


Efficiency



94 %


Hold time



22 Millisecond


Input current



10/5 A


Max output current (+12V)



70.8 A


Max output current (+12V1)



21 A


Max output current (+12V2)



21 A


Max output current (+12V3)



26 A


Max output current (+12V4)



26 A


Max output current (+3.3V)



25 A


Max output current (+5V)



25 A


Max output current (+5Vsb)



3 A


Max output current (-12V)



0.5 A


Peak power



920 Watt


Power factor



0.99


Power Factor Correction (PFC) type



Active


Power protection features



Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage


Total power



850 Watt


Product dimensions



Net Weight (Product, kg)



1.84 kg


Product Depth



17 cm


Product Height



8.6 cm


Product Width



15 cm


Technical details



Sustainability certificates



RoHS, ENERGY STAR


Vendor information



Brand Name


be quiet!


Warranty



1 Year(s)