Product comparison · 2 power supply units

be quiet! BN128 power supply unit vs Chieftec CTB-400S power supply unit

22specifications compared
15differ
7identical
22known for one product only

Key differences

Total power
- BN128 power supply unit:650 W
- CTB-400S power supply unit:400 W
Peak power
- BN128 power supply unit:750 W
- CTB-400S power supply unit:400 W
AC input voltage
- BN128 power supply unit:100 - 240 V
- CTB-400S power supply unit:230 V
Max output current (+12V)
- BN128 power supply unit:20 A
- CTB-400S power supply unit:18 A
Max output current (+5V)
- BN128 power supply unit:30 A
- CTB-400S power supply unit:20 A
Max output current (-12V)
- BN128 power supply unit:0.5 A
- CTB-400S power supply unit:0.3 A
Max output current (+5Vsb)
- BN128 power supply unit:3 A
- CTB-400S power supply unit:2.5 A
Number of SATA power connectors
- BN128 power supply unit:9
- CTB-400S power supply unit:3

Side by side

Differences highlightedShow differences only

Comparison of BN128, CTB-400S
44 specifications	A be quiet! BN128 power supply unit Model BN128 View product	B Chieftec CTB-400S power supply unit Model CTB-400S View product
Power8 differ
Total powerDiffers	650 W	400 W
Peak powerDiffers	750 W	400 W
AC input voltageDiffers	100 - 240 V	230 V
AC input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Input currentKnown for one	9 A	Unknown — not stated by the source
Maximum input current (@110V)Known for one	+12V,+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V	Unknown — not stated by the source
Power Factor Correction (PFC) typeKnown for one	Active	Unknown — not stated by the source
Max output current (+3.3V)	24 A	24 A
Max output current (+12V)Differs	20 A	18 A
Max output current (+5V)Differs	30 A	20 A
Max output current (-12V)Differs	0.5 A	0.3 A
Max output current (+5Vsb)Differs	3 A	2.5 A
EfficiencyKnown for one	87%	Unknown — not stated by the source
Hold timeKnown for one	19 ms	Unknown — not stated by the source
Power protection featuresDiffers	Over current, Over power, Over voltage, Short circuit, Under voltage, Overheating	Over current, Over voltage, Overload, Short circuit, Under voltage, Overheating
Combined power (+3.3V)Known for one	Unknown — not stated by the source	120 W
Combined power (+12V)Known for one	Unknown — not stated by the source	300 W
Combined power (+5V)Known for one	Unknown — not stated by the source	120 W
Combined power (-12V)Known for one	Unknown — not stated by the source	3.6 W
Combined power (+5Vsb)Known for one	Unknown — not stated by the source	12.5 W
Ports & interfaces3 differ
Number of SATA power connectorsDiffers	9	3
PCI Express power connectors (6-pin)Differs	2	1
PCI Express power connectors (6+2 pin)Known for one	2	Unknown — not stated by the source
CPU P4 connector (4-pin)	1	1
CPU power connector (4+4 pin)Known for one	Yes	Unknown — not stated by the source
Cabling typeDiffers	Semi-Modular	Non-Modular
Motherboard power connectorKnown for one	Unknown — not stated by the source	24-pin ATX
Peripheral (Molex) power connectors (4-pin)Known for one	Unknown — not stated by the source	3
Floppy drive power connectorKnown for one	Unknown — not stated by the source	1
Performance2 differ
Purpose	PC	PC
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certificationDiffers	80 PLUS Silver	80 PLUS
ATX version	2.3	2.3
EPS versionKnown for one	2.92	Unknown — not stated by the source
Noise levelDiffers	22 dB	24 dB
Mean time between failures (MTBF)	100000 h	100000 h
Design1 differ
Product colourDiffers	Black	Grey
Fan diameter	12 cm	12 cm
Fan speedKnown for one	2000	Unknown — not stated by the source
Number of fansKnown for one	Unknown — not stated by the source	1 fan(s)
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 40 °C	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	CE, CB	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	2 kg	Unknown — not stated by the source
Other features1 differ
Dimensions (WxDxH)Differs	86 x 200 x 150 mm	150 x 140 x 87 mm

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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