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Product comparison · 2 power supply units

be quiet! Straight Power E8 vs be quiet! TFX-300W power supply unit 20+4 pin ATX ATX Black

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  • 42specifications compared
  • 22differ
  • 20identical
  • 18known for one product only

Key differences

  • Total power
    • 600 W
    • 300 W
  • Combined power (+3.3V)
    • 140 W
    • 110 W
  • Combined power (+12V)
    • 576 W
    • 250 W
  • Combined power (+5V)
    • 140 W
    • 110 W
  • Max output current (+3.3V)
    • 24 A
    • 20 A
  • Max output current (+12V)
    • 48 A
    • 20.83 A
  • Max output current (+5V)
    • 24 A
    • 22 A
  • Max output current (+5Vsb)
    • 3 A
    • 2 A

Side by side

Differences highlightedShow differences only
60 specifications
A

be quiet!

Straight Power E8View product
B

be quiet!

TFX-300W power supply unit 20+4 pin ATX ATX Black

Model TFX-300W

View product
Power11 differ
Total powerDiffers600 W300 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Maximum input current (@110V)Differs+12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power Factor Correction (PFC) typeKnown for oneActive
Combined power (+3.3V)Differs140 W110 W
Combined power (+12V)Differs576 W250 W
Combined power (+5V)Differs140 W110 W
Combined power (-12V)Known for one6 W
Combined power (+5Vsb)Known for one15 W
Max output current (+3.3V)Differs24 A20 A
Max output current (+12V)Differs48 A20.83 A
Max output current (+5V)Differs24 A22 A
Max output current (-12V)0.5 A0.5 A
Max output current (+5Vsb)Differs3 A2 A
EfficiencyDiffers91%83%
Power protection featuresDiffersOver current, Over power, Over voltage, Overload, Short circuit, Under voltage, OverheatingOver current, Over power, Over voltage, Short circuit, Under voltage
Input currentKnown for one4.5 A
Power factorKnown for one0.9
Hold timeKnown for one17 ms
Ports & interfaces3 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers62
Peripheral (Molex) power connectors (4-pin)Differs53
PCI Express power connectors (6-pin)Known for one1
PCI Express power connectors (6+2 pin)Known for one2
CPU P4 connector (4-pin)11
CPU power connector (4+4 pin)Known for oneYes
Floppy drive power connectorDiffers21
Connector(s)IEC C14IEC C14
Cabling typeNon-ModularNon-Modular
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationDiffers80 PLUS Silver80 PLUS
ATX version2.32.3
EPS versionKnown for one2.92
Noise levelKnown for one20.5 dB
Mean time between failures (MTBF)100000 h100000 h
Bearing technologyKnown for oneRifle
Compatible productsKnown for oneIntel C6
Design1 differ
Product colourBlackBlack
Fan diameterDiffers12 cm8 cm
Number of fans1 fan(s)1 fan(s)
Fan locationSideSide
LED indicatorsNoNo
Fan speedKnown for one3600
Safety regulation & standards1 differ
SafetyDiffersFLCE, CB, TUV, N, S, Fl, D
Certificates1 differ
CertificationDiffersCE, CB, D, N, S, TUVENERGY STAR 4.0, ErP, WEEE, RoHS
Compliance certificatesKnown for oneRoHS
Packaging data1 differ
Package weightDiffers3.01 kg1.41 kg
Other features3 differ
Dimensions (WxDxH)Differs160 x 150 x 86 mm70 x 85 x 177 mm
Package dimensions (WxDxH)Differs328 x 248 x 102 mm159 x 195 x 80 mm
Parallel processing technology supportNot supportedNot supported
Ports quantityKnown for one20
Power managementYesYes
Power over Ethernet (PoE)NoNo
Power supply typeAC/DCAC/DC
Redundant power supply (RPS) supportNoNo
Power rocker switchDiffersYesNo
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 50 °C
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR

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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