Product comparison · 2 power supply units

be quiet! BN233 power supply unit vs be quiet! SFX Power 2

53specifications compared
37differ
16identical
13known for one product only

Key differences

Total power
- BN233 power supply unit:700 W
- SFX Power 2:400 W
Peak power
- BN233 power supply unit:770 W
- SFX Power 2:450 W
AC input voltage
- BN233 power supply unit:100 - 240 V
- SFX Power 2:110 - 240 V
Input current
- BN233 power supply unit:10 A
- SFX Power 2:6 A
Power factor
- BN233 power supply unit:0.97
- SFX Power 2:0.9
Combined power (+3.3V)
- BN233 power supply unit:150 W
- SFX Power 2:120 W
Combined power (+12V)
- BN233 power supply unit:672 W
- SFX Power 2:360 W
Combined power (+5V)
- BN233 power supply unit:150 W
- SFX Power 2:120 W

Side by side

Differences highlightedShow differences only

Comparison of BN233, SFX Power 2
66 specifications	A be quiet! BN233 power supply unit Model BN233 View product	B be quiet! SFX Power 2 View product
Power19 differ
Total powerDiffers	700 W	400 W
Peak powerDiffers	770 W	450 W
AC input voltageDiffers	100 - 240 V	110 - 240 V
Input currentDiffers	10 A	6 A
Maximum input current (@110V)Differs	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorDiffers	0.97	0.9
Combined power (+3.3V)Differs	150 W	120 W
Combined power (+12V)Differs	672 W	360 W
Combined power (+5V)Differs	150 W	120 W
Combined power (+5Vsb)Differs	15 W	12.5 W
Max output current (+3.3V)Differs	25 A	21 A
Max output current (+12V1)Differs	18 A	17 A
Max output current (+12V2)Differs	18 A	16 A
Max output current (+12V3)Known for one	22 A	Unknown — not stated by the source
Max output current (+12V4)Known for one	22 A	Unknown — not stated by the source
Max output current (+5V)Differs	25 A	22 A
Max output current (-12V)Differs	0.3 A	0.5 A
Max output current (+5Vsb)Differs	3 A	2.5 A
EfficiencyDiffers	93%	87.5%
Hold timeDiffers	17 ms	24 ms
Power protection featuresDiffers	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Over current, Over power, Over voltage, Short circuit, Under voltage
Ports & interfaces3 differ
Number of SATA power connectorsDiffers	11	4
Peripheral (Molex) power connectors (4-pin)Differs	4	1
PCI Express power connectors (6+2 pin)Differs	4	1
CPU power connector (4+4 pin)Known for one	Yes	Unknown — not stated by the source
CPU P4 connector (4-pin)Known for one	Unknown — not stated by the source	1
Performance2 differ
Power supply unit (PSU) form factorDiffers	ATX	SFX
80 PLUS certificationDiffers	80 PLUS Gold	80 PLUS Bronze
ATX versionKnown for one	2.4	Unknown — not stated by the source
EPS versionKnown for one	2.92	Unknown — not stated by the source
Bearing technologyKnown for one	FDB	Unknown — not stated by the source
Noise levelKnown for one	Unknown — not stated by the source	33.9 dB
Design2 differ
Fan diameterDiffers	13.5 cm	8 cm
Fan speedDiffers	1800	2579
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
Safety regulation & standardsidentical
SafetyKnown for one	CE, CB, TÜV, FCC, cRUus, cTUVus, BSMI	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	160 mm	100 mm
DepthDiffers	150 mm	125 mm
HeightDiffers	86 mm	63.5 mm
WeightDiffers	2.24 kg	950 g
Packaging data4 differ
Package widthDiffers	328 mm	199 mm
Package depthDiffers	248 mm	195 mm
Package heightDiffers	102 mm	75 mm
Package weightDiffers	2.87 kg	1.3 kg
Package typeKnown for one	Box	Unknown — not stated by the source
Other features3 differ
Noise level (silent mode, <30%)Differs	10.9 dB	20.7 dB
Noise level (quiet mode, 50%)Differs	11.9 dB	20.9 dB
Noise level (full-load mode, 100%)Differs	23.1 dB	33.9 dB
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	10 - 50 °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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