Product comparison · 2 power supply units

be quiet! DARK POWER 14 | 850 W vs be quiet! POWER ZONE 2 | 1200 W

67specifications compared
34differ
33identical
18known for one product only

Key differences

Total power
- DARK POWER 14 | 850 W:850 W
- POWER ZONE 2 | 1200 W:1200 W
Peak power
- DARK POWER 14 | 850 W:950 W
- POWER ZONE 2 | 1200 W:1270 W
Maximum input current (@110V)
- DARK POWER 14 | 850 W:10 A
- POWER ZONE 2 | 1200 W:15 A
Maximum input current (@220V)
- DARK POWER 14 | 850 W:5 A
- POWER ZONE 2 | 1200 W:7.5 A
Power factor
- DARK POWER 14 | 850 W:0.98
- POWER ZONE 2 | 1200 W:0.97
Number of +12V rail(s)
- DARK POWER 14 | 850 W:4
- POWER ZONE 2 | 1200 W:1
Combined power (+12V)
- DARK POWER 14 | 850 W:850 W
- POWER ZONE 2 | 1200 W:1200 W
Max output current (+3.3V)
- DARK POWER 14 | 850 W:24 A
- POWER ZONE 2 | 1200 W:20 A

Side by side

Differences highlightedShow differences only

Comparison of DARK POWER 14 | 850 W, POWER ZONE 2 | 1200 W
85 specifications	A be quiet! DARK POWER 14 \| 850 W View product	B be quiet! POWER ZONE 2 \| 1200 W View product
Power13 differ
Total powerDiffers	850 W	1200 W
Peak powerDiffers	950 W	1270 W
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50/60 Hz	50/60 Hz
Maximum input current (@110V)Differs	10 A	15 A
Maximum input current (@220V)Differs	5 A	7.5 A
Power factorDiffers	0.98	0.97
Number of +12V rail(s)Differs	4	1
Combined power (+3.3V)	120 W	120 W
Combined power (+12V)Differs	850 W	1200 W
Combined power (+5V)	120 W	120 W
Combined power (-12V)Known for one	Unknown — not stated by the source	6 W
Combined power (+5Vsb)Known for one	Unknown — not stated by the source	15 W
Max output current (+3.3V)Differs	24 A	20 A
Max output current (+12V)Known for one	Unknown — not stated by the source	100 A
Max output current (+5V)Differs	24 A	20 A
Max output current (-12V)Differs	0.5 A	0.3 A
Max output current (+5Vsb)	3 A	3 A
EfficiencyDiffers	93.8%	92.7%
Hold timeDiffers	20.7 ms	20.42 ms
Power protection featuresDiffers	Over current, Over voltage, Overheating, Overload, Short circuit, Surge & inrush protection (SIP), Under voltage	Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage
Max output current (+12V1)Known for one	30 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	30 A	Unknown — not stated by the source
Max output current (+12V3)Known for one	35 A	Unknown — not stated by the source
Max output current (+12V4)Known for one	35 A	Unknown — not stated by the source
Ports & interfaces7 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Motherboard power cable length	60 cm	60 cm
Number of SATA power connectorsDiffers	13	7
SATA power cable lengthDiffers	600,750,900,1050 mm	550,700,850,1000 mm
Number of SATA power cablesDiffers	4	2
Peripheral (Molex) power connectors (4-pin)Differs	2	1
Peripheral (Molex) power cable lengthDiffers	900,1050 mm	1000 mm
EPS power connector (8-pin)	Yes	Yes
PCI Express power connectors (6+2 pin)Differs	4	3
PCI Express power connectors (12-pin)Differs	1	2
PCI Express power cable length	60 cm	60 cm
CPU P4 connector (4-pin)Known for one	Unknown — not stated by the source	1
CPU power connector (4+4 pin)	Yes	Yes
CPU power cable length	70 cm	70 cm
PCI Express connector	Yes	Yes
Cabling type	Fully-Modular	Fully-Modular
EPS power connector (4+4 pin)Known for one	Yes	Unknown — not stated by the source
ATX power connector (20+4 pin)Known for one	Yes	Unknown — not stated by the source
Performance3 differ
Purpose	PC	PC
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certificationDiffers	80 PLUS Titanium	80 PLUS Platinum
ATX version	3.1	3.1
EPS version	2.92	2.92
Noise levelDiffers	16 dB	25.5 dB
Bearing technologyDiffers	FDB	Rifle
Mean time between failures (MTBF)	100000 h	100000 h
Design1 differ
Product colour	Black	Black
Cooling type	Active	Active
Fan diameterDiffers	13.5 cm	14 cm
Number of fans	1 fan(s)	1 fan(s)
Fan speed	0 - 2100 RPM	0 - 2100 RPM
IlluminationKnown for one	Unknown — not stated by the source	No
On/off switch	Yes	Yes
On/off fan switchKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 85%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 95%
Certificates1 differ
Compliance certificatesDiffers	CB, Federal Communications Commission (FCC), RoHS, TÜV mark, UKCA, WEEE, cTUVus	BSMI, CB, CCC, CE, Federal Communications Commission (FCC), RCM, RoHS, TÜV mark, UKCA, WEEE
Waste Electrical and Electronic Equipment (WEEE) compliance	Yes	Yes
Weight & dimensions2 differ
Width	150 mm	150 mm
DepthDiffers	175 mm	160 mm
Height	86 mm	86 mm
WeightDiffers	2.2 kg	1.88 kg
Packaging data4 differ
Manual	Yes	Yes
Manual languagesDiffers	Simplified Chinese, German, English, Spanish, French, Italian, Japanese, Polish, Russian, Thai, Ukrainian	German, English, Spanish, French, Polish, Russian, Ukrainian
Package widthDiffers	230 mm	248 mm
Package depthDiffers	355 mm	328 mm
Package heightDiffers	126 mm	102 mm
Package weight	3.5 kg	3.5 kg
Package typeKnown for one	Unknown — not stated by the source	Box
Technical detailsidentical
Sustainability certificates	ENERGY STAR, ErP, Triman	ENERGY STAR, ErP, Triman
Logistics data3 differ
Products per shipping (inner) case	4 pc(s)	4 pc(s)
Shipping (inner) case gross weightKnown for one	Unknown — not stated by the source	14.9 kg
Shipping (inner) case heightDiffers	26 cm	34 cm
Shipping (inner) case lengthDiffers	52.8 cm	43 cm
Shipping (inner) case widthDiffers	36.8 cm	26.5 cm
Shipping (inner) case net weightKnown for one	19.3 kg	Unknown — not stated by the source
Other featuresidentical
Screws included	Yes	Yes
Cable ties included	Yes	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

More power supply unit comparisons

All power supply unit comparisons