Product comparison · 2 power supply units

be quiet! BN263 power supply unit vs be quiet! System Power B8

40specifications compared
22differ
18identical
25known for one product only

Key differences

Total power
- BN263 power supply unit:500 W
- System Power B8:350 W
AC input voltage
- BN263 power supply unit:100 - 240 V
- System Power B8:200 - 240 V
AC input frequency
- BN263 power supply unit:50 - 60 Hz
- System Power B8:50 Hz
Input current
- BN263 power supply unit:5 - 8 A
- System Power B8:3 A
Combined power (+3.3V)
- BN263 power supply unit:120 W
- System Power B8:103 W
Combined power (+12V)
- BN263 power supply unit:480 W
- System Power B8:324 W
Combined power (+5V)
- BN263 power supply unit:120 W
- System Power B8:103 W
Max output current (+3.3V)
- BN263 power supply unit:24 A
- System Power B8:19 A

Side by side

Differences highlightedShow differences only

Comparison of BN263, System Power B8
65 specifications	A be quiet! BN263 power supply unit Model BN263 View product	B be quiet! System Power B8 View product
Power11 differ
Total powerDiffers	500 W	350 W
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	5 - 8 A	3 A
Combined power (+3.3V)Differs	120 W	103 W
Combined power (+12V)Differs	480 W	324 W
Combined power (+5V)Differs	120 W	103 W
Combined power (-12V)Known for one	3.6 W	Unknown — not stated by the source
Combined power (+5Vsb)Known for one	15 W	Unknown — not stated by the source
Max output current (+3.3V)Differs	24 A	19 A
Max output current (+12V1)Differs	28 A	20 A
Max output current (+12V2)Differs	20 A	16 A
Max output current (+5Vsb)Known for one	3 A	Unknown — not stated by the source
EfficiencyDiffers	91%	87%
Power factorKnown for one	Unknown — not stated by the source	0.98
Hold timeKnown for one	Unknown — not stated by the source	18 ms
Ports & interfaces3 differ
Motherboard power cable lengthKnown for one	55 cm	Unknown — not stated by the source
Number of PATA power connectorsDiffers	3	2
Number of SATA power connectorsDiffers	6	4
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	1
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
PCI Express connectorKnown for one	Yes	Unknown — not stated by the source
Performance1 differ
80 PLUS certificationDiffers	80 PLUS Silver	80 PLUS
Bearing technologyKnown for one	Rifle	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	100000 h	Unknown — not stated by the source
Design2 differ
Product colourDiffers	Black	Grey
Fan speedDiffers	1243	1650
Cooling typeKnown for one	Unknown — not stated by the source	Active
Fan locationKnown for one	Unknown — not stated by the source	Top
Packaging contentidentical
Cables includedKnown for one	AC	Unknown — not stated by the source
Certificates1 differ
CertificationDiffers	CE, CB, TÜV, FCC, cTUVus, RCM (Australia), BSMI, CU (Russia)	ErP, WEEE
Weight & dimensions2 differ
DepthDiffers	150 mm	140 mm
WeightDiffers	1.96 kg	1.6 kg
Packaging dataidentical
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthKnown for one	240 mm	Unknown — not stated by the source
Package depthKnown for one	210 mm	Unknown — not stated by the source
Package heightKnown for one	96 mm	Unknown — not stated by the source
Package weightKnown for one	2.17 kg	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Other features2 differ
Noise level (silent mode, <30%)Known for one	11.4 dB	Unknown — not stated by the source
Noise level (quiet mode, 50%)Differs	12 dB	12.3 dB
Noise level (full-load mode, 100%)Differs	23.7 dB	24.9 dB
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C
Safety regulation & standardsidentical
SafetyKnown for one	Unknown — not stated by the source	CE, CB, TÜV, RCM, CU

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.

More power supply unit comparisons

All power supply unit comparisons