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Product comparison · 2 power supply units

Aerocool KCAS-650M power supply unit vs Aerocool KCAS-850M power supply unit

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  • 37specifications compared
  • 10differ
  • 27identical
  • 2known for one product only

Key differences

  • Total power
    • 650 W
    • 850 W
  • Combined power (+12V)
    • 624 W
    • 840 W
  • Combined power (-12V)
    • 3.6 W
    • 7.2 W
  • Max output current (+3.3V)
    • 24 A
    • 25 A
  • Max output current (+12V)
    • 52 A
    • 70 A
  • Max output current (+5V)
    • 20 A
    • 25 A
  • Max output current (-12V)
    • 0.3 A
    • 0.6 A
  • Number of SATA power connectors
    • 7
    • 8

Side by side

Differences highlightedShow differences only
39 specifications
A

Aerocool

KCAS-650M power supply unit

Model KCAS-650M

View product
B

Aerocool

KCAS-850M power supply unit

Model KCAS-850M

View product
Power7 differ
Total powerDiffers650 W850 W
AC input voltage200 - 240 V200 - 240 V
AC input frequency47 - 53 Hz47 - 53 Hz
Input current6 A6 A
Maximum input current (@110V)+12V,+3.3V,+5V,+5Vsb,-12V+12V,+3.3V,+5V,+5Vsb,-12V
Power Factor Correction (PFC) typeActiveActive
Combined power (+12V)Differs624 W840 W
Combined power (-12V)Differs3.6 W7.2 W
Combined power (+5Vsb)15 W15 W
Max output current (+3.3V)Differs24 A25 A
Max output current (+12V)Differs52 A70 A
Max output current (+5V)Differs20 A25 A
Max output current (-12V)Differs0.3 A0.6 A
Max output current (+5Vsb)3 A3 A
Efficiency85%85%
Power protection featuresOver power, Over voltage, Short circuit, Under voltageOver power, Over voltage, Short circuit, Under voltage
Ports & interfaces2 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers78
Peripheral (Molex) power connectors (4-pin)Known for one5
PCI Express power connectors (6+2 pin)Differs24
CPU power connector (4+4 pin)YesYes
ATX power connector (20+4 pin)YesYes
Floppy disk drive connectorKnown for oneYes
Cabling typeSemi-ModularSemi-Modular
Performanceidentical
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Bronze80 PLUS Bronze
ATX version2.42.4
Noise level32.2 dB32.2 dB
Designidentical
Product colourBlackBlack
Fan diameter14 cm14 cm
Number of fans1 fan(s)1 fan(s)
Fan locationTopTop
On/off switchYesYes
Certificatesidentical
Compliance certificatesRoHSRoHS
Technical detailsidentical
Sustainability certificatesENERGY STARENERGY STAR
Other features1 differ
Noise level (silent mode, <30%)19.1 dB19.1 dB
Noise level (quiet mode, 50%)20.3 dB20.3 dB
Noise level (full-load mode, 100%)Differs32.2 dB30.2 dB

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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