Product comparison · 2 power supply units

be quiet! SFX L vs FSP AURUM S 550W

33specifications compared
22differ
11identical
31known for one product only

Key differences

Total power
- SFX L:500 W
- AURUM S 550W:550 W
Input current
- SFX L:10 A
- AURUM S 550W:4 A
Power factor
- SFX L:0.95
- AURUM S 550W:0.9
Combined power (+3.3V)
- SFX L:105 W
- AURUM S 550W:125 W
Combined power (+12V)
- SFX L:500 W
- AURUM S 550W:504 W
Combined power (+5V)
- SFX L:105 W
- AURUM S 550W:125 W
Combined power (-12V)
- SFX L:3.6 W
- AURUM S 550W:18.6 W
Combined power (+5Vsb)
- SFX L:15 W
- AURUM S 550W:18.6 W

Side by side

Differences highlightedShow differences only

Comparison of SFX L, AURUM S 550W
64 specifications	A be quiet! SFX L View product	B FSP AURUM S 550W View product
Power12 differ
Total powerDiffers	500 W	550 W
Peak powerKnown for one	550 W	Unknown — not stated by the source
Input currentDiffers	10 A	4 A
Power factorDiffers	0.95	0.9
Combined power (+3.3V)Differs	105 W	125 W
Combined power (+12V)Differs	500 W	504 W
Combined power (+5V)Differs	105 W	125 W
Combined power (-12V)Differs	3.6 W	18.6 W
Combined power (+5Vsb)Differs	15 W	18.6 W
Max output current (+3.3V)Differs	20 A	24 A
Max output current (+12V)Differs	41.7 A	42 A
Max output current (+5V)Differs	20 A	22 A
EfficiencyDiffers	92%	90%
Power protection featuresKnown for one	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Unknown — not stated by the source
Ports & interfaces4 differ
Motherboard power connectorDiffers	20+4 pin ATX	24-pin ATX
Motherboard power cable lengthKnown for one	30 cm	Unknown — not stated by the source
Number of SATA power connectorsDiffers	6	5
SATA power cable lengthKnown for one	600,800 mm	Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Differs	4	2
CPU power connector (4+4 pin)Known for one	Yes	Unknown — not stated by the source
Cabling typeDiffers	Fully-Modular	Non-Modular
EPS power connector (4+4 pin)Known for one	Unknown — not stated by the source	Yes
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
Floppy drive power connectorKnown for one	Unknown — not stated by the source	1
Performance2 differ
Power supply unit (PSU) form factorDiffers	SFX	ATX
ATX versionDiffers	2.4	2.31
Bearing technologyKnown for one	Sleeve	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	100000 h	Unknown — not stated by the source
EPS versionKnown for one	Unknown — not stated by the source	2.92
Noise levelKnown for one	Unknown — not stated by the source	21 dB
Designidentical
On/off switchKnown for one	Yes	Unknown — not stated by the source
Cooling typeKnown for one	Unknown — not stated by the source	Active
Packaging contentidentical
Cables includedKnown for one	AC, PCIe, SATA	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
CertificationKnown for one	CE, CB, TÜV, FCC, cTUVus, RCM	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	125 mm	140 mm
DepthDiffers	130 mm	150 mm
HeightDiffers	64 mm	86 mm
WeightDiffers	1.14 kg	2.07 kg
Packaging dataidentical
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthKnown for one	205 mm	Unknown — not stated by the source
Package depthKnown for one	220 mm	Unknown — not stated by the source
Package heightKnown for one	80 mm	Unknown — not stated by the source
Package weightKnown for one	2.02 kg	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Technical detailsidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
Screws includedKnown for one	Yes	Unknown — not stated by the source
Cable ties includedKnown for one	Yes	Unknown — not stated by the source
Noise level (silent mode, <30%)Known for one	9.9 dB	Unknown — not stated by the source
Noise level (quiet mode, 50%)Known for one	14 dB	Unknown — not stated by the source
Noise level (full-load mode, 100%)Known for one	28.5 dB	Unknown — not stated by the source
Cable managementKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C

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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