Product comparison · 2 power supply units

be quiet! BN234 power supply unit vs be quiet! System Power 8

51specifications compared
29differ
22identical
16known for one product only

Key differences

AC input voltage
- BN234 power supply unit:100 - 240 V
- System Power 8:200 - 240 V
AC input frequency
- BN234 power supply unit:50 - 60 Hz
- System Power 8:50 Hz
Input current
- BN234 power supply unit:8 A
- System Power 8:4 A
Power factor
- BN234 power supply unit:0.97
- System Power 8:0.98
Combined power (+3.3V)
- BN234 power supply unit:130 W
- System Power 8:110 W
Combined power (+12V)
- BN234 power supply unit:480 W
- System Power 8:456 W
Combined power (+5V)
- BN234 power supply unit:130 W
- System Power 8:110 W
Max output current (+12V1)
- BN234 power supply unit:18 A
- System Power 8:24 A

Side by side

Differences highlightedShow differences only

Comparison of BN234, System Power 8
67 specifications	A be quiet! BN234 power supply unit Model BN234 View product	B be quiet! System Power 8 View product
Power12 differ
Peak powerKnown for one	550 W	Unknown — not stated by the source
AC input voltageDiffers	100 - 240 V	200 - 240 V
AC input frequencyDiffers	50 - 60 Hz	50 Hz
Input currentDiffers	8 A	4 A
Maximum input current (@110V)Known for one	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V	Unknown — not stated by the source
Power factorDiffers	0.97	0.98
Combined power (+3.3V)Differs	130 W	110 W
Combined power (+12V)Differs	480 W	456 W
Combined power (+5V)Differs	130 W	110 W
Max output current (+12V1)Differs	18 A	24 A
Max output current (+12V2)Differs	18 A	20 A
Max output current (+12V3)Known for one	18 A	Unknown — not stated by the source
Max output current (+12V4)Known for one	18 A	Unknown — not stated by the source
Max output current (+5V)Differs	24 A	15 A
EfficiencyDiffers	93%	87%
Hold timeDiffers	17 ms	18 ms
Max output current (+12V)Known for one	Unknown — not stated by the source	38 A
Ports & interfaces3 differ
Number of SATA power connectorsDiffers	9	6
Peripheral (Molex) power connectors (4-pin)Differs	3	0
Floppy disk drive connectorKnown for one	Yes	Unknown — not stated by the source
Floppy drive power connectorKnown for one	1	Unknown — not stated by the source
Cabling typeDiffers	Semi-Modular	Non-Modular
Number of PATA power connectorsKnown for one	Unknown — not stated by the source	2
Performance2 differ
80 PLUS certificationDiffers	80 PLUS Gold	80 PLUS
EPS versionKnown for one	2.92	Unknown — not stated by the source
Bearing technologyDiffers	FDB	Sleeve
Noise levelKnown for one	Unknown — not stated by the source	30.1 dB
Design2 differ
Fan diameterDiffers	13.5 cm	12 cm
Fan speedDiffers	1200	2100
Fan locationKnown for one	Unknown — not stated by the source	Top
On/off switchKnown for one	Unknown — not stated by the source	Yes
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	CE, CB, TÜV, RCM, CU
Safety regulation & standardsidentical
SafetyKnown for one	CE, CB, TÜV, FCC, cRUus, cTUVus, BSMI	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	160 mm	150 mm
DepthDiffers	150 mm	140 mm
WeightDiffers	2.18 kg	1.82 kg
Packaging data4 differ
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthDiffers	328 mm	97 mm
Package depthDiffers	248 mm	195 mm
Package heightDiffers	102 mm	268 mm
Package weightDiffers	2.77 kg	2.17 kg
Other features3 differ
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Noise level (silent mode, <30%)Differs	10.3 dB	15.5 dB
Noise level (quiet mode, 50%)Differs	10.7 dB	16.4 dB
Noise level (full-load mode, 100%)Differs	15 dB	30.1 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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