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Product comparison · 2 power supply units

be quiet! BQT L7-300W vs Chieftec BPS-450S power supply unit

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  • 14specifications compared
  • 6differ
  • 8identical
  • 47known for one product only

Key differences

  • Total power
    • 300 W
    • 450 W
  • Input current
    • 5 A
    • 3/6 A
  • Number of SATA power connectors
    • 3
    • 4
  • Peripheral (Molex) power connectors (4-pin)
    • 2
    • 3
  • Dimensions (WxDxH)
    • 140 x 150 x 85 mm
    • 150 x 140 x 87 mm

Side by side

Differences highlightedShow differences only
61 specifications
A

be quiet!

BQT L7-300WView product
B

Chieftec

BPS-450S power supply unit

Model BPS-450S

View product
Power3 differ
Total powerDiffers300 W450 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers5 A3/6 A
Maximum input current (@110V)Known for one+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.99
Power Factor Correction (PFC) typeKnown for oneActive
Combined power (+3.3V)Known for one70 W
Combined power (+12V)Known for one252 W
Combined power (+5V)Known for one40 W
Combined power (-12V)Known for one3.6 W
Combined power (+5Vsb)Known for one12.5 W
Max output current (+3.3V)Known for one21 A
Max output current (+12V)Known for one21 A
Max output current (+5V)Known for one15 A
Max output current (-12V)Known for one0.3 A
Max output current (+5Vsb)Known for one2.5 A
EfficiencyKnown for one87%
Power protection featuresDiffersOver current, Over power, Over voltage, Short circuit, Under voltage, OverheatingOver current, Over voltage, Short circuit, Under voltage, Overload
Ports & interfaces2 differ
Motherboard power connectorKnown for one20+4 pin ATX
Number of SATA power connectorsDiffers34
Peripheral (Molex) power connectors (4-pin)Differs23
CPU P4 connector (4-pin)Known for one1
ATX Power connector (24-pin)YesYes
Floppy drive power connector11
Connector(s)Known for oneIEC C14
Cabling typeNon-ModularNon-Modular
Monitor outletKnown for oneNo
EPS power connector (8-pin)Known for oneYes
PCI Express power connectors (6-pin)Known for one1
Performanceidentical
PurposeKnown for onePC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationKnown for one80 PLUS
ATX versionKnown for one2.3
EPS versionKnown for one2.92
Noise levelKnown for one19 dB
Bearing technologyKnown for oneFDB
Mean time between failures (MTBF)100000 h100000 h
Compatible productsKnown for oneIntel C6
Designidentical
Product colourKnown for oneBlack
Cooling typeKnown for oneActive
Fan diameter12 cm12 cm
Number of fansKnown for one1 fan(s)
Fan locationKnown for oneSide
IlluminationKnown for oneNo
LED indicatorsKnown for oneNo
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 40 °C
Certificatesidentical
Compliance certificatesKnown for oneRoHS
CertificationKnown for oneErP, WEEE
Safety regulation & standardsidentical
SafetyKnown for oneCE, CB, TUV, N, S, Fl, D
Weight & dimensionsidentical
WidthKnown for one150 mm
DepthKnown for one150 mm
HeightKnown for one85 mm
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other features1 differ
Dimensions (WxDxH)Differs140 x 150 x 85 mm150 x 140 x 87 mm
Parallel processing technology supportKnown for oneHybrid CrossFireX
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

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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