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Product comparison · 2 power supply units

Chieftec PSF-400B power supply unit vs UNYKAch SFX 450W

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  • 25specifications compared
  • 20differ
  • 5identical
  • 29known for one product only

Key differences

  • Total power
    • 400 W
    • 450 W
  • AC input voltage
    • 100 - 240 V
    • 230 V
  • AC input frequency
    • 47 - 63 Hz
    • 50 - 60 Hz
  • Max output current (+3.3V)
    • 16 A
    • 20 A
  • Max output current (+12V1)
    • 30 A
    • 23 A
  • Max output current (+5V)
    • 15 A
    • 20 A
  • Max output current (-12V)
    • 0.3 A
    • 0.5 A
  • Max output current (+5Vsb)
    • 2.5 A
    • 2 A

Side by side

Differences highlightedShow differences only
54 specifications
A

Chieftec

PSF-400B power supply unit

Model PSF-400B

View product
B

UNYKAch

SFX 450WView product
Power10 differ
Total powerDiffers400 W450 W
AC input voltageDiffers100 - 240 V230 V
AC input frequencyDiffers47 - 63 Hz50 - 60 Hz
Max output current (+3.3V)Differs16 A20 A
Max output current (+12V1)Differs30 A23 A
Max output current (+5V)Differs15 A20 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)Differs2.5 A2 A
EfficiencyDiffers87%78%
Power protection featuresDiffersOverload, Short circuitOver power, Over voltage, Overcharge, Overheating, Overload, Short circuit, Under voltage
Power Factor Correction (PFC) typeKnown for oneActive
Combined power (+3.3V)Known for one100 W
Combined power (+12V)Known for one360 W
Combined power (+5V)Known for one100 W
Combined power (-12V)Known for one3.6 W
Combined power (+5Vsb)Known for one12.5 W
Ports & interfaces4 differ
Motherboard power connectorDiffers24-pin ATX20+4 pin ATX
Motherboard power cable lengthDiffers45 cm32 cm
Number of SATA power connectorsDiffers42
SATA power cable lengthKnown for one330,480 mm
Peripheral (Molex) power connectors (4-pin)Differs32
Peripheral (Molex) power cable lengthKnown for one330,480 mm
CPU P4 connector (4-pin)Known for one1
CPU power cable lengthKnown for one43 cm
ATX power connector (20+4 pin)Known for oneYes
Cabling typeNon-ModularNon-Modular
EPS power connector (8-pin)Known for oneYes
PCI Express power connectors (6-pin)Known for one1
Floppy drive power connectorKnown for one1
Performance2 differ
PurposeDiffersPCPC/Server
Power supply unit (PSU) form factorDiffersATXSFX
Noise levelKnown for one28 dB
80 PLUS certificationKnown for one80 PLUS Bronze
ATX versionKnown for one2.3
Design1 differ
Product colourDiffersMetallicSilver
Cooling typeActiveActive
Fan diameter8 cm8 cm
Number of fans1 fan(s)1 fan(s)
On/off switchKnown for oneYes
Fan locationKnown for oneSide
Certificatesidentical
Compliance certificatesRoHSRoHS
CertificationKnown for oneEUP 2013 / EN60950 / TÜV / CE
Weight & dimensions3 differ
WidthDiffers150 mm125 mm
DepthDiffers140 mm100 mm
HeightDiffers87 mm65 mm
WeightKnown for one558 g
Packaging dataidentical
Package widthKnown for one155 mm
Package depthKnown for one130 mm
Package heightKnown for one75 mm
Package weightKnown for one718 g
Package typeKnown for oneBox
Other featuresidentical
Package volumeKnown for one0.0015 cm³
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Logistics dataidentical
Harmonized System (HS) codeKnown for one84733020

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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