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Product comparison · 2 power supply units

be quiet! BN128 power supply unit vs be quiet! E8-CM-680W power supply unit 20+4 pin ATX ATX Black

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  • 32specifications compared
  • 11differ
  • 21identical
  • 39known for one product only

Key differences

  • Total power
    • 650 W
    • 680 W
  • Input current
    • 9 A
    • 10 A
  • Max output current (+12V)
    • 20 A
    • 52 A
  • Max output current (+5V)
    • 30 A
    • 28 A
  • Number of SATA power connectors
    • 9
    • 7
  • Noise level
    • 22 dB
    • 21.8 dB
  • Fan speed
    • 2000
    • 1416
  • Operating temperature (T-T)
    • 10 - 40 °C
    • 0 - 40 °C

Side by side

Differences highlightedShow differences only
71 specifications
A

be quiet!

BN128 power supply unit

Model BN128

View product
B

be quiet!

E8-CM-680W power supply unit 20+4 pin ATX ATX Black

Model E8-CM-680W

View product
Power5 differ
Total powerDiffers650 W680 W
Peak power750 W750 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers9 A10 A
Maximum input current (@110V)Differs+12V,+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.99
Power Factor Correction (PFC) typeActiveActive
Combined power (+3.3V)Known for one75 W
Combined power (+12V)Known for one624 W
Combined power (+5V)Known for one85 W
Combined power (-12V)Known for one6 W
Combined power (+5Vsb)Known for one15 W
Max output current (+3.3V)24 A24 A
Max output current (+12V)Differs20 A52 A
Max output current (+5V)Differs30 A28 A
Max output current (-12V)0.5 A0.5 A
Max output current (+5Vsb)3 A3 A
Hold time19 ms19 ms
Power protection featuresOver current, Over power, Over voltage, Short circuit, Under voltage, OverheatingOver current, Over power, Over voltage, Short circuit, Under voltage, Overheating
EfficiencyKnown for one87%
Ports & interfaces1 differ
Motherboard power connectorKnown for one20+4 pin ATX
Number of SATA power connectorsDiffers97
Peripheral (Molex) power connectors (4-pin)Known for one7
PCI Express power connectors (6-pin)22
PCI Express power connectors (6+2 pin)22
CPU P4 connector (4-pin)11
Floppy drive power connectorKnown for one2
CPU power connectors (8-pin)Known for one1
Connector(s)Known for oneIEC C14
Cabling typeSemi-ModularSemi-Modular
Monitor outletKnown for oneNo
CPU power connector (4+4 pin)Known for oneYes
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Silver80 PLUS Silver
ATX version2.32.3
EPS version2.922.92
Noise levelDiffers22 dB21.8 dB
Bearing technologyKnown for oneFDB
Mean time between failures (MTBF)100000 h100000 h
Compatible productsKnown for onePC
Design1 differ
Product colourBlackBlack
Cooling typeKnown for oneActive
Fan diameter12 cm12 cm
Number of fansKnown for one1 fan(s)
Fan speedDiffers20001416
Fan locationKnown for oneSide
IlluminationKnown for oneNo
LED indicatorsKnown for oneNo
Operational conditions1 differ
Operating temperature (T-T)Differs10 - 40 °C0 - 40 °C
Certificates1 differ
Compliance certificatesKnown for oneRoHS
CertificationDiffersCE, CBErP, WEEE, RoHS
Safety regulation & standardsidentical
SafetyKnown for oneCE, CB, TUV, N, S, Fl, D
Weight & dimensions1 differ
WidthKnown for one150 mm
DepthKnown for one160 mm
HeightKnown for one86 mm
WeightDiffers2 kg2.28 kg
Packaging dataidentical
Package weightKnown for one3.12 kg
Case or master carton dimensions (W x D x H)Known for one661 x 282 x 358 mm
Case or master carton quantityKnown for one6 pc(s)
Case or master carton weightKnown for one20 kg
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other featuresidentical
Package dimensions (WxDxH)Known for one328 x 248 x 102 mm
Parallel processing technology supportKnown for oneHybrid CrossFireX, Quad-GPU SLI
Power managementKnown for oneYes
Power over Ethernet (PoE)Known for oneNo
Power supply typeKnown for oneAC/DC
Redundant power supply (RPS) supportKnown for oneNo
Power rocker switchKnown for oneYes
Dimensions (WxDxH)Known for one86 x 200 x 150 mm

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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