Article number: BN505

PURE POWER 12 M

850W

Exceptional quiet, superior features

Pure Power 12 M 850W is ATX 3.1 compliant and PCIe 5.1 compatible and offers peerless dependability with best-in-class features. Pure Power 12 M 850W offers the best combination of features with outstanding compatibility.

  • 80 PLUS® Gold efficiency (up to 93.2%) 
  • ATX 3.1 PSU with full support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors
  • Exceptionally silent 120mm be quiet! fan
  • Advanced stability and voltage regulation thanks to LLC technology
  • 2 strong 12V-rails
  • Modular cables for maximum build flexibility
  • One PCIe 5.1 12V-2x6 600W and 4 PCIe 6+2 connectors for overclocked high-end GPUs  
  • 10-year manufacturer’s warranty
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80 PLUS® GOLD CERTIFIED

Very high operating efficiency

Pure Power 12 M 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 93.2%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 M 850W is always the correct choice for quiet systems and gaming PCs!

FUTURE-PROOF YOUR SYSTEM

Fulfills all ATX 3.1 specifications

Pure Power 12 M 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.

THE NEW STANDARD OF POWER

For massive transient loads

Pure Power 12 M offers 850W of continuous power with 2 independent 12V rails. Even if the graphics card demands excessive power for a short time: Pure Power 12 M 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.

UNPRECEDENTED SILENT OPERATION

Achieved with a silence-optimized be quiet! fan

The exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class
quiet functionality. 

HIGH-CLASS TECHNOLOGIES

Rock-solid stability

With its LLC topology Pure Power 12 M 850W provides a best-in-class voltage regulation and efficiency. That makes it perfect for building or upgrading very quiet systems as well as gaming and media creation PCs.

MODULAR CABLES

Utmost convenience and compatibility

Thanks to their modularity, all unnecessary cables in the system are left out. Pure Power 12 M 850W simplifies cable management and routing for a tidy-looking system. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures inside the case.

“Ever since the first Pure Power, uncountable amounts of it have found their way into the PCs – and most likely hearts – of users worldwide.” 

Aaron Licht, Chief Executive Officer

All models at a glance:

Product Series

General data

ModelPure Power 12 M 850W
Continuous power (W)850
Peak power (W)900
Form factorVersion 3.1
Form factor EPS 12VVersion 2.92
TopologyLLC + SR + DC/DC
Digitally controlled-
Voltage (Vac)100 - 240
Frequency (Hz)50 - 60
Input current (A)12 / 6
Power factor at 100% load>0.98
Modern standby
Power consumption in standby (W)<0.1
Average life time (h / 25°C)>100,000
Operating temperature up to (°C)40

Infographics

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Efficiency

80 PLUS certificationGold
Efficiency (%) at 230V, 2% load73.8
Efficiency (%) at 230V, 10% load87.1
Efficiency (%) at 230V, 20% load91.7
Efficiency (%) at 230V, 50% load93.2
Efficiency (%) at 230V, 100% load91.2

Fan and cooling technology

FanSilence-optimized be quiet! fan
Fan size (mm)120
Bearing technologyRifle
Motor technology4-pole fan motor
Max. fan speed (rpm)2000
dB(A) at 10% load9.3
dB(A) at 20% load9.4
dB(A) at 50% load9.5
dB(A) at 100% load25.7

Output

Multi-rail operation (12V rails)2
12V single rail operation-
Overclocking key-
+3.3V (A)22
+5V (A)22
+12V1 (A)40
+12V2 (A)36
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)3
Max. combined power 12V (W)850
Max. combined power 12VHPWR (W)600
Max. combined power 3.3V + 5V (W)120
Hold-up time at 100% load (ms)20.6
Hold-up time at 80% load (ms)24.9
Power good signal (ms)100 - 150

Cables and connectors

Modular cables
Sleeved cablesP24, 12V-2x6
Flat cablesP4+4, P8, PCIe, drives
Maximum cable length (cm)95
Cable length to motherboard (cm)55
No. of cables8
ATX-Motherboard (20+4-pin)1
P4+4 (CPU)1
P8 (CPU)1
P4 (CPU)-
12VHPWR cables1
PCI-e 6+2-pin (GPU)4
PCI-e 6-pin (GPU)-
SATA6
PATA2
FDD (Floppy)-

Protection

OTP (over temperature protection)
OCP (over current protection)
OPP (over power protection)
SCP (short circuit protection)
OVP (over Voltage protection)
UVP (under Voltage protection)
SIP (Surge & Inrush protection)

Safety certification

BSMI
CB
CCC
CE
cRUus-
cTUVus
CU
FCC
RCM
TÜV
UKCA

Environmental directives

Energy Star8.0
ErP
WEEE
RoHS
Triman

Scope of delivery

Thumb screws-
Screws
Cable ties
Velcro cable ties-
User manual languagesCN, DE, EN, ES, FR, JP, PL, RU, TW
OCK slot bracket with switch / OCK jumper-
SFX-to-ATX adapter bracket-

Casing

Dimensions without cable (L x W x H), (mm)160 x 150 x 86
Weight (kg)1.85
ColorBlack

Service

Warranty (Years)10
Express replacement service in first year-
International hotline / free of charge✓ / DE, FR, US

Logistics data and RRP

Article numberBN505
EAN code4260052189795
Dimensions, package (L x W x H), (mm)284 x 220 x 100
Gross weight, package (kg)3.1
Pieces per packaging unit4
Dimensions, shipping box (L x W x H), (mm)426 x 298 x 243
Gross weight, shipping box (kg)12.5
RRP (€)139.90

Upgrade Check

You are already using a be quiet! power supply and want to upgrade your system with a new PURE POWER 12 M | 850W ? Check here which cables are compatible and don't need to be replaced.

Previous power supply

PURE POWER 12 M | 850W
Article number: BN505

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