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Product comparison · 2 power supply units

be quiet! Dark Power Pro 11 vs UNYKAch 51980 power supply unit

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  • 21specifications compared
  • 13differ
  • 8identical
  • 45known for one product only

Key differences

  • Total power
    • 1000 W
    • 550 W
  • AC input voltage
    • 100 - 240 V
    • 230 V
  • Efficiency
    • 94.1%
    • 75%
  • Number of SATA power connectors
    • 10
    • 2
  • Peripheral (Molex) power connectors (4-pin)
    • 7
    • 2
  • PCI Express power connectors (6+2 pin)
    • 8
    • 1
  • ATX version
    • 2.4
    • 2.3
  • Fan diameter
    • 13.5 cm
    • 12 cm

Side by side

Differences highlightedShow differences only
66 specifications
A

be quiet!

Dark Power Pro 11View product
B

UNYKAch

51980 power supply unit

Model 51980

View product
Power4 differ
Total powerDiffers1000 W550 W
Peak powerKnown for one1100 W
AC input voltageDiffers100 - 240 V230 V
AC input frequencyKnown for one50 - 60 Hz
Input currentKnown for one14 A
Maximum input current (@110V)Known for one+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.99
Combined power (+3.3V)Known for one25 W
Combined power (+5V)Known for one25 W
Combined power (-12V)Known for one0.5 W
EfficiencyDiffers94.1%75%
Hold timeKnown for one19.29 ms
Power protection featuresDiffersOver current, Over power, Over voltage, Overheating, Short circuit, Under voltageOver current, Over voltage, Overload, Short circuit, Under voltage
Power Factor Correction (PFC) typeKnown for onePassive
Max output current (+3.3V)Known for one30 A
Max output current (+12V1)Known for one24 A
Max output current (+5V)Known for one32 A
Max output current (-12V)Known for one0.5 A
Max output current (+5Vsb)Known for one2 A
Ports & interfaces3 differ
Number of SATA power connectorsDiffers102
Peripheral (Molex) power connectors (4-pin)Differs72
EPS power connector (8-pin)Known for oneYes
PCI Express power connectors (6-pin)Known for one1
PCI Express power connectors (6+2 pin)Differs81
Floppy drive power connectorKnown for one2
CPU power connectors (8-pin)Known for one1
Cabling typeKnown for oneSemi-Modular
Motherboard power cable lengthKnown for one30 cm
SATA power cable lengthKnown for one330,480 mm
Peripheral (Molex) power cable lengthKnown for one330,480 mm
PCI Express power cable lengthKnown for one32 cm
CPU power cable lengthKnown for one32 cm
ATX power connector (20+4 pin)Known for oneYes
Floppy disk drive cable lengthKnown for one65 cm
Performance1 differ
80 PLUS certificationKnown for one80 PLUS Platinum
ATX versionDiffers2.42.3
EPS versionKnown for one2.92
Mean time between failures (MTBF)Known for one100000 h
Design1 differ
Cooling typeKnown for oneActive
Fan diameterDiffers13.5 cm12 cm
Fan speedKnown for one1800
Fan locationKnown for oneTop
On/off switchKnown for oneYes
Certificates1 differ
CertificationDiffersErP, WEEEEN60950, CE, TÜV
Safety regulation & standardsidentical
SafetyKnown for oneCE, CB, TÜV, FCC, cTUVus, RCM, CU
Weight & dimensions3 differ
WidthDiffers150 mm140 mm
DepthDiffers193 mm150 mm
HeightDiffers86 mm85 mm
WeightKnown for one2.38 kg
Packaging dataidentical
Package widthKnown for one305 mm
Package depthKnown for one514 mm
Package heightKnown for one378 mm
Package weightKnown for one4.59 kg
Package typeKnown for oneBox
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other featuresidentical
Noise level (quiet mode, 50%)Known for one10.4 dB
Noise level (full-load mode, 100%)Known for one26.3 dB
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 50 °C

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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