Product comparison · 2 power supply units

be quiet! BN155 power supply unit vs Zalman ZM500-RS power supply unit

12specifications compared
5differ
7identical
26known for one product only

Key differences

Number of SATA power connectors
- BN155 power supply unit:6
- ZM500-RS power supply unit:2
Product colour
- BN155 power supply unit:Black
- ZM500-RS power supply unit:Grey
Certification
- BN155 power supply unit:CE, CF
- ZM500-RS power supply unit:80 PLUS Bronze, NVIDIA SLI
Dimensions (WxDxH)
- BN155 power supply unit:160 x 150 x 86 mm
- ZM500-RS power supply unit:150 x 140 x 86 mm

Side by side

Differences highlightedShow differences only

Comparison of BN155, ZM500-RS
38 specifications	A be quiet! BN155 power supply unit Model BN155 View product	B Zalman ZM500-RS power supply unit Model ZM500-RS View product
Power1 differ
Total power	500 W	500 W
AC input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
AC input frequency	50 - 60 Hz	50 - 60 Hz
Maximum input current (@110V)Known for one	+12V,+3.3V,+5V,+5Vsb,-12V	Unknown — not stated by the source
Power protection featuresDiffers	Over current, Over power, Over voltage, Short circuit, Under voltage	Over current, Over voltage, Short circuit, Under voltage
Input currentKnown for one	Unknown — not stated by the source	4 - 8 A
EfficiencyKnown for one	Unknown — not stated by the source	87%
Ports & interfaces1 differ
Motherboard power connectorKnown for one	20+4 pin ATX	Unknown — not stated by the source
Number of SATA power connectorsDiffers	6	2
Peripheral (Molex) power connectors (4-pin)	5	5
PCI Express power connectors (6-pin)	1	1
PCI Express power connectors (6+2 pin)Known for one	1	Unknown — not stated by the source
CPU P4 connector (4-pin)Known for one	1	Unknown — not stated by the source
CPU power connector (4+4 pin)	Yes	Yes
Floppy drive power connectorKnown for one	2	Unknown — not stated by the source
Connector(s)Known for one	IEC C14	Unknown — not stated by the source
Cabling type	Non-Modular	Non-Modular
PCI Express power connectors (8-pin)Known for one	Unknown — not stated by the source	1
ATX power connector (20+4 pin)Known for one	Unknown — not stated by the source	Yes
Performanceidentical
PurposeKnown for one	PC	Unknown — not stated by the source
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certificationKnown for one	80 PLUS Silver	Unknown — not stated by the source
ATX versionKnown for one	2.3	Unknown — not stated by the source
EPS versionKnown for one	2.92	Unknown — not stated by the source
Noise levelKnown for one	19.1 dB	Unknown — not stated by the source
Compatible productsKnown for one	Unknown — not stated by the source	PC
Design1 differ
Product colourDiffers	Black	Grey
Fan diameterKnown for one	12 cm	Unknown — not stated by the source
Number of fansKnown for one	1 fan(s)	Unknown — not stated by the source
Fan locationKnown for one	Side	Unknown — not stated by the source
LED indicatorsKnown for one	No	Unknown — not stated by the source
Certificates1 differ
CertificationDiffers	CE, CF	80 PLUS Bronze, NVIDIA SLI
Other features1 differ
Dimensions (WxDxH)Differs	160 x 150 x 86 mm	150 x 140 x 86 mm
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	10 - 40 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 80 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Safety regulation & standardsidentical
SafetyKnown for one	Unknown — not stated by the source	FCC, CE, CB

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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