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Product comparison · 2 power supply units

be quiet! POWER ZONE 2 750W vs be quiet! POWER ZONE 2 850W

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  • 73specifications compared
  • 11differ
  • 62identical
  • 0known for one product only

Key differences

  • Total power
    • 750 W
    • 850 W
  • Peak power
    • 820 W
    • 920 W
  • Combined power (+12V)
    • 750 W
    • 849.6 W
  • Combined power (-12V)
    • 3.6 W
    • 6 W
  • Max output current (+12V)
    • 62.5 A
    • 70.8 A
  • Max output current (-12V)
    • 0.3 A
    • 0.5 A
  • Efficiency
    • 92.5%
    • 92.3%
  • Hold time
    • 24.5 ms
    • 21.1 ms

Side by side

Differences highlightedShow differences only
73 specifications
A

be quiet!

POWER ZONE 2 750WView product
B

be quiet!

POWER ZONE 2 850WView product
Power8 differ
Total powerDiffers750 W850 W
Peak powerDiffers820 W920 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50/60 Hz50/60 Hz
Maximum input current (@110V)10 A10 A
Maximum input current (@220V)5 A5 A
Power factor0.980.98
Number of +12V rail(s)11
Combined power (+3.3V)120 W120 W
Combined power (+12V)Differs750 W849.6 W
Combined power (+5V)120 W120 W
Combined power (-12V)Differs3.6 W6 W
Combined power (+5Vsb)15 W15 W
Max output current (+3.3V)20 A20 A
Max output current (+12V)Differs62.5 A70.8 A
Max output current (+5V)20 A20 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)3 A3 A
EfficiencyDiffers92.5%92.3%
Hold timeDiffers24.5 ms21.1 ms
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltageOver current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage
Ports & interfaces2 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Motherboard power cable length60 cm60 cm
Number of SATA power connectorsDiffers67
SATA power cable length550,700,850,1000 mm550,700,850,1000 mm
Peripheral (Molex) power connectors (4-pin)11
Peripheral (Molex) power cable lengthDiffers850 mm1000 mm
EPS power connector (8-pin)YesYes
PCI Express power connectors (6+2 pin)33
PCI Express power connectors (16-pin)11
PCI Express power cable length60 cm60 cm
CPU P4 connector (4-pin)11
CPU power connector (4+4 pin)YesYes
CPU power cable length70 cm70 cm
PCI Express connectorYesYes
Cabling typeFully-ModularFully-Modular
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Platinum80 PLUS Platinum
ATX version3.13.1
EPS version2.922.92
Noise levelDiffers15.8 dB24.9 dB
Bearing technologyRifleRifle
Mean time between failures (MTBF)100000 h100000 h
Designidentical
Product colourBlackBlack
Cooling typeActiveActive
Fan diameter14 cm14 cm
Number of fans1 fan(s)1 fan(s)
IlluminationNoNo
On/off switchYesYes
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)0 - 85%0 - 85%
Storage relative humidity (H-H)0 - 95%0 - 95%
Certificatesidentical
Compliance certificatesBSMI, CB, CCC, CE, Federal Communications Commission (FCC), RCM, RoHS, TÜV mark, UKCA, WEEEBSMI, CB, CCC, CE, Federal Communications Commission (FCC), RCM, RoHS, TÜV mark, UKCA, WEEE
Waste Electrical and Electronic Equipment (WEEE) complianceYesYes
Weight & dimensionsidentical
Width150 mm150 mm
Depth160 mm160 mm
Height86 mm86 mm
Packaging dataidentical
ManualYesYes
Manual languagesGerman, English, Spanish, French, Polish, Russian, UkrainianGerman, English, Spanish, French, Polish, Russian, Ukrainian
Package width248 mm248 mm
Package depth328 mm328 mm
Package height102 mm102 mm
Package weight3.21 kg3.21 kg
Package typeBoxBox
Logistics dataidentical
Products per shipping (inner) case6 pc(s)6 pc(s)
Shipping (inner) case gross weight19.3 kg19.3 kg
Shipping (inner) case height34.6 cm34.6 cm
Shipping (inner) case length65.1 cm65.1 cm
Shipping (inner) case width28.2 cm28.2 cm
Other featuresidentical
Screws includedYesYes
Cable ties includedYesYes

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.

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