Product comparison · 2 power supply units

be quiet! Pure Power 11 400W vs be quiet! SFX L Power

60specifications compared
35differ
25identical
13known for one product only

Key differences

Total power
- Pure Power 11 400W:400 W
- SFX L Power:500 W
Peak power
- Pure Power 11 400W:450 W
- SFX L Power:550 W
Input current
- Pure Power 11 400W:6 A
- SFX L Power:10 A
Combined power (+3.3V)
- Pure Power 11 400W:120 W
- SFX L Power:105 W
Combined power (+12V)
- Pure Power 11 400W:384 W
- SFX L Power:500 W
Combined power (+5V)
- Pure Power 11 400W:120 W
- SFX L Power:105 W
Max output current (+3.3V)
- Pure Power 11 400W:24 A
- SFX L Power:20 A
Max output current (+5V)
- Pure Power 11 400W:15 A
- SFX L Power:20 A

Side by side

Differences highlightedShow differences only

Comparison of Pure Power 11 400W, SFX L Power
73 specifications	A be quiet! Pure Power 11 400W View product	B be quiet! SFX L Power View product
Power9 differ
Total powerDiffers	400 W	500 W
Peak powerDiffers	450 W	550 W
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Input currentDiffers	6 A	10 A
Power factor	0.99	0.99
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	120 W	105 W
Combined power (+12V)Differs	384 W	500 W
Combined power (+5V)Differs	120 W	105 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)	15 W	15 W
Max output current (+3.3V)Differs	24 A	20 A
Max output current (+12V1)Known for one	24 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	20 A	Unknown — not stated by the source
Max output current (+5V)Differs	15 A	20 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	3 A	3 A
Efficiency	92%	92%
Hold timeDiffers	29 ms	16.7 ms
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Max output current (+12V)Known for one	Unknown — not stated by the source	41.7 A
Ports & interfaces7 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Motherboard power cable lengthDiffers	45 cm	30 cm
Number of PATA power connectorsDiffers	2	3
Number of SATA power connectorsDiffers	5	6
SATA power cable lengthKnown for one	450,600,750 mm	Unknown — not stated by the source
Peripheral (Molex) power connectors (4-pin)Known for one	0	Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Differs	2	4
PCI Express power cable lengthDiffers	50 cm	40 cm
CPU power connector (4+4 pin)	Yes	Yes
CPU power cable lengthDiffers	6 cm	40 cm
Floppy disk drive connectorKnown for one	Yes	Unknown — not stated by the source
PCI Express connectorKnown for one	Yes	Unknown — not stated by the source
Cabling typeDiffers	Non-Modular	Fully-Modular
Performance2 differ
Purpose	PC	PC
Power supply unit (PSU) form factorDiffers	ATX	SFX
80 PLUS certification	80 PLUS Gold	80 PLUS Gold
ATX version	2.4	2.4
Bearing technologyDiffers	Rifle	Sleeve
Supported motherboard form factorsKnown for one	Unknown — not stated by the source	Mini-ITX
Silent modeKnown for one	Unknown — not stated by the source	Yes
Designidentical
Product colour	Black	Black
Cooling typeKnown for one	Active	Unknown — not stated by the source
Fan diameter	12 cm	12 cm
Number of fans	1 fan(s)	1 fan(s)
IlluminationKnown for one	No	Unknown — not stated by the source
On/off switchKnown for one	Unknown — not stated by the source	Yes
Certificates1 differ
Compliance certificates	RoHS	RoHS
CertificationDiffers	ErP, WEEE	CE, CB, TÜV, FCC, cTUVus, RCM
Safety regulation & standardsidentical
SafetyKnown for one	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CU, CCC	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	150 mm	125 mm
DepthDiffers	150 mm	130 mm
HeightDiffers	86 mm	64 mm
WeightDiffers	1.93 kg	1.14 kg
Packaging data4 differ
Manual	Yes	Yes
Package widthDiffers	210 mm	205 mm
Package depthDiffers	240 mm	220 mm
Package heightDiffers	96 mm	80 mm
Package weightDiffers	2.22 kg	2.02 kg
Package type	Box	Box
Technical detailsidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Logistics data5 differ
Master (outer) case widthDiffers	326 mm	430 mm
Master (outer) case lengthDiffers	514 mm	430 mm
Master (outer) case heightDiffers	241 mm	240 mm
Harmonized System (HS) code	84733020	84733020
Master (outer) case gross weightDiffers	14.5 kg	21.4 kg
Products per master (outer) caseDiffers	6 pc(s)	10 pc(s)
Other features3 differ
Screws included	Yes	Yes
Cable ties included	Yes	Yes
Noise level (silent mode, <30%)Differs	10.5 dB	9.9 dB
Noise level (quiet mode, 50%)Differs	11.4 dB	14 dB
Noise level (full-load mode, 100%)Differs	14.9 dB	28.5 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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