be quiet! BN337 power supply unit 850 W 20+4 pin ATX ATX Black

80 PLUS Platinum, 850 W, 135 mm, 160 x 150 x 86 mm
£158.15 £131.79
Availability:
In Stock
SKU
BN337
  • 80 PLUS Platinum efficiency (up to 94%)
  • ATX 3.1 PSU with full support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors
  • Handles massive power excursions
  • Virtually inaudible Silent Wings 135mm fan
  • Funnel-shaped fan opening on PSU case for high airflow intake
  • Full bridge LLC technology for unmatched signal stability
  • One massive high-performance 12V-rail
  • Japanese 105°C capacitors ensure highest stability and reliability
  • Wire-free DC side inside the PSU for enhanced cooling and longevity
  • Modular cable management for maximum convenience
  • One PCIe 5.1 12V-2x6 600W and 4 PCIe 6+2 connectors for overclocked high-end GPUs
Cooling
Fan diameter13.5 cm
Number of fans1 fan(s)
Fan speed0 - 2100 RPM
Cooling typeActive
Performance
On/off switchYes
Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Platinum
PurposePC
ATX version3.1
EPS version2.92
Noise level22.1 dB
Mean time between failures (MTBF)100000 h
Bearing technologyFDB
Supported motherboard form factorsATX, micro ATX, Mini-ATX
Design
80 PLUS certification80 PLUS Platinum
Product colourBlack
Fan diameter13.5 cm
On/off switchYes
Number of fans1 fan(s)
Fan speed0 - 2100 RPM
Cooling typeActive
Power
Total power850 W
Peak power920 W
AC input voltage100 - 240 V
AC input frequency50/60 Hz
Input current10/5 A
Power factor0.99
Combined power (+3.3V)150 W
Combined power (+12V)849.6 W
Combined power (+5V)150 W
Max output current (+3.3V)25 A
Max output current (+12V1)70.8 A
Max output current (+5V)25 A
Max output current (-12V)0.5 A
Max output current (+5Vsb)3 A
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time19.2 ms
Efficiency92.3%
Ports & interfaces
Motherboard power cable length60 cm
SATA power cable length550,700,850,1000 mm
Peripheral (Molex) power cable length1000,850 mm
PCI Express power cable length60 cm
CPU power cable length70 cm
Motherboard power connector20+4 pin ATX
Number of SATA power connectors9
Number of PATA power connectors2
Peripheral (Molex) power connectors (4-pin)0
EPS power connector (8-pin)Yes
PCI Express power connectors (6+2 pin)4
Cabling typeFully-Modular
EPS power connector (4+4 pin)Yes
PCI Express power connectors (16-pin)1
Operational conditions
Operating temperature (T-T)0 - 40 °C
Technical details
Shipping (inner) case width28.2 cm
Shipping (inner) case net weight22.7 kg
Shipping (inner) case length65.1 cm
Shipping (inner) case height34.6 cm
Products per shipping (inner) case6 pc(s)
Sustainability complianceYes
Sustainability certificatesTriman, ENERGY STAR, ErP
Warranty period10 year(s)
Compliance certificatesRoHS, Federal Communications Commission (FCC), UKCA, WEEE, CE
Certificates
Compliance certificatesRoHS, Federal Communications Commission (FCC), UKCA, WEEE, CE
80 PLUS certification80 PLUS Platinum
Packaging content
Cables includedCPU, SATA
Cable tie(s) includedYes
Weight & dimensions
Width150 mm
Depth160 mm
Height86 mm
Weight1.81 kg
Packaging data
Cables includedCPU, SATA
Package depth328 mm
Package width248 mm
Package height102 mm
Package typeBox
Package weight3.52 kg
Logistics data
Shipping (inner) case width28.2 cm
Shipping (inner) case net weight22.7 kg
Shipping (inner) case length65.1 cm
Shipping (inner) case height34.6 cm
Products per shipping (inner) case6 pc(s)
Warranty period10 year(s)