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Product comparison · 2 power supply units

Chieftec CTB-550S power supply unit vs Chieftec SPS-650C power supply unit

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  • 26specifications compared
  • 15differ
  • 11identical
  • 9known for one product only

Key differences

The Chieftec SPS-650C power supply unit has 100 W more total power than the Chieftec CTB-550S power supply unit (650 W vs 550 W). The Chieftec SPS-650C power supply unit has 168 W more combined power (+12V) than the Chieftec CTB-550S power supply unit (624 W vs 456 W). The Chieftec SPS-650C power supply unit has 3 A more max output current (+3.3V) than the Chieftec CTB-550S power supply unit (25 A vs 22 A). AC input voltage: 230 V on the Chieftec CTB-550S power supply unit, 115 - 230 V on the Chieftec SPS-650C power supply unit. Motherboard power connector: 24-pin ATX on the Chieftec CTB-550S power supply unit, 20+4 pin ATX on the Chieftec SPS-650C power supply unit.

  • Total power
    • 550 W
    • 650 W
  • AC input voltage
    • 230 V
    • 115 - 230 V
  • Combined power (+12V)
    • 456 W
    • 624 W
  • Max output current (+3.3V)
    • 22 A
    • 25 A
  • Max output current (+12V)
    • 25 A
    • 52 A
  • Max output current (+5V)
    • 22 A
    • 25 A
  • Max output current (-12V)
    • 0.3 A
    • 0.5 A
  • Motherboard power connector
    • 24-pin ATX
    • 20+4 pin ATX

Side by side

Differences highlightedShow differences only
35 specifications
A

Chieftec

CTB-550S power supply unit

Model CTB-550S

View product
B

Chieftec

SPS-650C power supply unit

Model SPS-650C

View product
Power7 differ
Total powerDiffers550 W650 W
Peak powerKnown for one550 W
AC input voltageDiffers230 V115 - 230 V
Combined power (+3.3V)130 W130 W
Combined power (+12V)Differs456 W624 W
Combined power (+5V)130 W130 W
Combined power (-12V)Known for one3.6 W
Combined power (+5Vsb)Known for one15 W
Max output current (+3.3V)Differs22 A25 A
Max output current (+12V)Differs25 A52 A
Max output current (+5V)Differs22 A25 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)3 A3 A
Power protection featuresOver current, Over voltage, Overload, Short circuit, Under voltage, OverheatingOver current, Over voltage, Overload, Short circuit, Under voltage, Overheating
Power Factor Correction (PFC) typeKnown for oneActive
Ports & interfaces3 differ
Motherboard power connectorDiffers24-pin ATX20+4 pin ATX
Number of SATA power connectors66
Peripheral (Molex) power connectors (4-pin)Differs34
PCI Express power connectors (6+2 pin)22
PCI Express power connectors (8-pin)Known for one1
CPU P4 connector (4-pin)Known for one1
Floppy drive power connector11
Cabling typeDiffersNon-ModularFully-Modular
CPU power connector (4+4 pin)Known for oneYes
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationDiffers80 PLUS80 PLUS Silver
ATX version2.32.3
Noise level24 dB24 dB
Mean time between failures (MTBF)Known for one100000 h
Design2 differ
Product colourDiffersGreyRed
Fan diameterDiffers12 cm14 cm
Certificates1 differ
CertificationDiffersFCC, CE, CB, RoHSFCC, CE, CB
Compliance certificatesKnown for oneRoHS
Other features1 differ
Dimensions (WxDxH)Differs150 x 140 x 87 mm150 x 160 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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