BE QUIET

be quiet! Power Zone 2 850W 80 PLUS Platinum ATX Power Supply

CPU power cable length700
Storage temperature (T-T)-40 - 70
AC input voltage100 – 240 V
Noise level24.9 dB
Width150 mm
Motherboard power connector20+4 pin ATX

The be quiet! Power Zone 2 850W is an ATX desktop computer power supply built for high-end systems that demand both performance and efficiency. With 80 PLUS Platinum certification , it reaches up to 94.1% energy efficiency, cutting wasted heat and keeping running costs down.

Description

Silent Operation Without Sacrificing Power

850W continuous output (peak 920W) handles demanding CPUs and GPUs without throttling
80 PLUS Platinum efficiency means less heat generated inside your case and lower electricity draw
140mm Pure Wings 3 fan with semi-passive zero-RPM mode — spins down completely under light load for near-silent operation
ATX 3.1 form factor with a 90° angled 12V-2x6 connector, ready for current-generation graphics cards
Rated 100,000 hours MTBF for long-term reliability in a full-time workstation or gaming rig

An excellent fit for PC builders assembling high-performance gaming rigs, content creation workstations, or any ATX build where efficiency and low noise are priorities alongside raw power delivery.

Specifications

General

Brand	BE QUIET
Model name	POWER ZONE 2
Product colour	Black
Manual	Yes
Purpose	PC
Hold time	21.1
Efficiency	92.3
ATX version	3.1
EPS version	2.92
Cabling type	Fully-Modular
Fan diameter	140
Number of fans	1
Manual languages	English/French/German/Polish/Russian/Spanish/Ukrainian
Number of +12V rail(s)	1
Shipping (inner) case width	282
Shipping (inner) case height	346
Shipping (inner) case length	651
Mean time between failures (MTBF)	100000
Operating relative humidity (H-H)	0 - 85
Products per shipping (inner) case	6
Shipping (inner) case gross weight	19260
Waste Electrical and Electronic Equipment (WEEE) compliance	Yes
EAN	4260052191378

Processor

CPU power cable length	700
CPU P4 connector (4-pin)	1
CPU power connector (4+4 pin)	Yes

Storage

Storage temperature (T-T)	-40 - 70
Storage relative humidity (H-H)	0 - 95

Ports

EPS power connector (8-pin)	Yes
Motherboard power connector	20+4 pin ATX
Number of SATA power connectors	7
PCI Express power connectors (16-pin)	1
PCI Express power connectors (6+2 pin)	3
Peripheral (Molex) power connectors (4-pin)	1

Keyboard & controls

On/off switch	Yes

Battery & power

AC input voltage	100 – 240 V
AC input frequency	50/60
Peak power	920
Total power	850
Power factor	0.98
Combined power (+5V)	120
80 PLUS certification	80 PLUS Platinum
Combined power (+12V)	849.6
Combined power (-12V)	6
Combined power (+3.3V)	120
Combined power (+5Vsb)	15
SATA power cable length	1000/550/700/850
Max output current (+5V)	20
Max output current (+12V)	70.8
Max output current (-12V)	0.5
Power protection features	Over current/Over power/Over voltage/Overheating/Short circuit/Surge & inrush/Under voltage
Max output current (+3.3V)	20
Max output current (+5Vsb)	3
Maximum input current (@110V)	10
Maximum input current (@220V)	5
Motherboard power cable length	600
PCI Express power cable length	600
Power supply unit (PSU) form factor	ATX
Peripheral (Molex) power cable length	1000