Product comparison · 2 power supply units

Chieftec CTB-500S power supply unit vs Chieftec GPA-400S8 power supply unit

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  • 31specifications compared
  • 13differ
  • 18identical
  • 2known for one product only

Key differences

  • Total power
    • CTB-500S power supply unit:500 W
    • GPA-400S8 power supply unit:400 W
  • Peak power
    • CTB-500S power supply unit:500 W
    • GPA-400S8 power supply unit:400 W
  • Combined power (+3.3V)
    • CTB-500S power supply unit:120 W
    • GPA-400S8 power supply unit:12 W
  • Combined power (+12V)
    • CTB-500S power supply unit:400 W
    • GPA-400S8 power supply unit:336 W
  • Max output current (+3.3V)
    • CTB-500S power supply unit:24 A
    • GPA-400S8 power supply unit:22 A
  • Max output current (+12V)
    • CTB-500S power supply unit:20 A
    • GPA-400S8 power supply unit:18 A
  • Max output current (+5V)
    • CTB-500S power supply unit:20 A
    • GPA-400S8 power supply unit:18 A
  • Motherboard power connector
    • CTB-500S power supply unit:24-pin ATX
    • GPA-400S8 power supply unit:20+4 pin ATX

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Comparison of CTB-500S, GPA-400S8
33 specifications
Power8 differ
Total powerDiffers500 W400 W
Peak powerDiffers500 W400 W
AC input voltage230 V230 V
Combined power (+3.3V)Differs120 W12 W
Combined power (+12V)Differs400 W336 W
Combined power (+5V)120 W120 W
Combined power (-12V)3.6 W3.6 W
Combined power (+5Vsb)12.5 W12.5 W
Max output current (+3.3V)Differs24 A22 A
Max output current (+12V)Differs20 A18 A
Max output current (+5V)Differs20 A18 A
Max output current (-12V)0.3 A0.3 A
Max output current (+5Vsb)2.5 A2.5 A
Power protection featuresDiffersOver current, Over voltage, Overload, Short circuit, Under voltage, OverheatingOver current, Over voltage, Overload, Short circuit, Under voltage
Ports & interfaces4 differ
Motherboard power connectorDiffers24-pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers63
Peripheral (Molex) power connectors (4-pin)Differs32
PCI Express power connectors (6+2 pin)Differs21
PCI Express power connectors (8-pin)Known for one1Unknown — not stated by the source
CPU P4 connector (4-pin)11
Floppy drive power connector11
Cabling typeNon-ModularNon-Modular
Performanceidentical
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS80 PLUS
ATX version2.32.3
Noise level24 dB24 dB
Mean time between failures (MTBF)100000 h100000 h
Designidentical
Product colourGreyGrey
Fan diameter12 cm12 cm
Certificates1 differ
CertificationDiffersFCC, CE, CB, RoHSFCC, CE, CB
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS
Other featuresidentical
Dimensions (WxDxH)150 x 140 x 87 mm150 x 140 x 87 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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