Product comparison · 2 power supply units

be quiet! Pure Power 11 700W vs be quiet! System Power U9

55specifications compared
31differ
24identical
22known for one product only

Key differences

Total power
- Pure Power 11 700W:700 W
- System Power U9:400 W
Input current
- Pure Power 11 700W:10 A
- System Power U9:8 A
Power factor
- Pure Power 11 700W:0.99
- System Power U9:0.95
Combined power (+3.3V)
- Pure Power 11 700W:150 W
- System Power U9:103 W
Combined power (+12V)
- Pure Power 11 700W:672 W
- System Power U9:384 W
Combined power (+5V)
- Pure Power 11 700W:150 W
- System Power U9:103 W
Max output current (+3.3V)
- Pure Power 11 700W:25 A
- System Power U9:24 A
Max output current (+12V1)
- Pure Power 11 700W:36 A
- System Power U9:22 A

Side by side

Differences highlightedShow differences only

Comparison of Pure Power 11 700W, System Power U9
77 specifications	A be quiet! Pure Power 11 700W View product	B be quiet! System Power U9 View product
Power12 differ
Total powerDiffers	700 W	400 W
Peak powerKnown for one	750 W	Unknown — not stated by the source
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Input currentDiffers	10 A	8 A
Power factorDiffers	0.99	0.95
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	150 W	103 W
Combined power (+12V)Differs	672 W	384 W
Combined power (+5V)Differs	150 W	103 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)	15 W	15 W
Max output current (+3.3V)Differs	25 A	24 A
Max output current (+12V1)Differs	36 A	22 A
Max output current (+12V2)Differs	30 A	18 A
Max output current (+5V)Differs	20 A	15 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	3 A	3 A
EfficiencyDiffers	92%	89%
Hold timeDiffers	25 ms	17 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	32 A
Ports & interfaces5 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Motherboard power cable lengthDiffers	55 cm	45 cm
Number of PATA power connectorsDiffers	3	2
Number of SATA power connectorsDiffers	6	5
SATA power cable lengthDiffers	500,650,800 mm	350,550 mm
Peripheral (Molex) power connectors (4-pin)	0	0
PCI Express power connectors (6+2 pin)Differs	4	2
PCI Express power cable length	50 cm	50 cm
CPU power connector (4+4 pin)	Yes	Yes
CPU power cable lengthKnown for one	60 cm	Unknown — not stated by the source
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 type	Non-Modular	Non-Modular
CPU P4 connector (4-pin)Known for one	Unknown — not stated by the source	1
Performance2 differ
PurposeDiffers	PC	PC/Server
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certificationDiffers	80 PLUS Gold	80 PLUS Bronze
ATX version	2.4	2.4
EPS versionKnown for one	2.92	Unknown — not stated by the source
Bearing technologyKnown for one	Rifle	Unknown — not stated by the source
Supported motherboard form factorsKnown for one	Unknown — not stated by the source	ATX
Noise levelKnown for one	Unknown — not stated by the source	19.6 dB
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	100000 h
Designidentical
Product colour	Black	Black
Cooling type	Active	Active
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
Fan speedKnown for one	Unknown — not stated by the source	0 - 2100 RPM
Certificatesidentical
Compliance certificates	RoHS	RoHS
Certification	ErP, WEEE	ErP, WEEE
Safety regulation & standards1 differ
SafetyDiffers	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CU, CCC	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CCC
Weight & dimensions4 differ
WidthDiffers	150 mm	86 mm
DepthDiffers	150 mm	140 mm
HeightDiffers	86 mm	150 mm
WeightDiffers	2.11 kg	1.9 kg
Packaging data4 differ
Manual	Yes	Yes
Package widthDiffers	210 mm	268 mm
Package depthDiffers	240 mm	97 mm
Package heightDiffers	96 mm	195 mm
Package weightDiffers	2.39 kg	2.22 kg
Package typeKnown for one	Box	Unknown — not stated by the source
Technical detailsidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Logistics dataidentical
Master (outer) case widthKnown for one	326 mm	Unknown — not stated by the source
Master (outer) case lengthKnown for one	514 mm	Unknown — not stated by the source
Master (outer) case heightKnown for one	241 mm	Unknown — not stated by the source
Harmonized System (HS) codeKnown for one	84733020	Unknown — not stated by the source
Master (outer) case gross weightKnown for one	15.4 kg	Unknown — not stated by the source
Products per master (outer) caseKnown for one	6 pc(s)	Unknown — not stated by the source
Other features3 differ
Screws included	Yes	Yes
Cable ties includedKnown for one	Yes	Unknown — not stated by the source
Noise level (silent mode, <30%)Differs	11.4 dB	13.7 dB
Noise level (quiet mode, 50%)Differs	12.2 dB	14.6 dB
Noise level (full-load mode, 100%)Differs	25.9 dB	19.6 dB
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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