Product comparison · 2 power supply units

be quiet! BN228 power supply unit vs Zalman ZM500-GLX power supply unit

33specifications compared
21differ
12identical
33known for one product only

Key differences

Total power
- BN228 power supply unit:300 W
- ZM500-GLX power supply unit:500 W
AC input voltage
- BN228 power supply unit:100 - 240 V
- ZM500-GLX power supply unit:115 - 230 V
Input current
- BN228 power supply unit:4 A
- ZM500-GLX power supply unit:8 A
Power factor
- BN228 power supply unit:0.9
- ZM500-GLX power supply unit:0.99
Combined power (+12V)
- BN228 power supply unit:264 W
- ZM500-GLX power supply unit:450 W
Combined power (+5Vsb)
- BN228 power supply unit:12 W
- ZM500-GLX power supply unit:12.5 W
Max output current (+3.3V)
- BN228 power supply unit:18 A
- ZM500-GLX power supply unit:20 A
Max output current (+5V)
- BN228 power supply unit:18 A
- ZM500-GLX power supply unit:20 A

Side by side

Differences highlightedShow differences only

Comparison of BN228, ZM500-GLX
66 specifications	A be quiet! BN228 power supply unit Model BN228 View product	B Zalman ZM500-GLX power supply unit Model ZM500-GLX View product
Power12 differ
Total powerDiffers	300 W	500 W
Peak powerKnown for one	330 W	Unknown — not stated by the source
AC input voltageDiffers	100 - 240 V	115 - 230 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Input currentDiffers	4 A	8 A
Maximum input current (@110V)Differs	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V	+12V,+3.3V,+5V,+5Vsb,-12V
Power factorDiffers	0.9	0.99
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)	103 W	103 W
Combined power (+12V)Differs	264 W	450 W
Combined power (+5V)	103 W	103 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)Differs	12 W	12.5 W
Max output current (+3.3V)Differs	18 A	20 A
Max output current (+12V1)Known for one	13 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	13 A	Unknown — not stated by the source
Max output current (+5V)Differs	18 A	20 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)Differs	3 A	2.5 A
EfficiencyDiffers	89.7%	87%
Hold timeKnown for one	16 ms	Unknown — not stated by the source
Power protection featuresDiffers	Over current, Over power, Over voltage, Short circuit, Under voltage	Over power, Over voltage, Short circuit, Under voltage
Max output current (+12V)Known for one	Unknown — not stated by the source	37.5 A
Ports & interfacesidentical
Motherboard power connectorKnown for one	20+4 pin ATX	Unknown — not stated by the source
Number of SATA power connectorsKnown for one	4	Unknown — not stated by the source
Peripheral (Molex) power connectors (4-pin)Known for one	2	Unknown — not stated by the source
CPU P4 connector (4-pin)Known for one	1	Unknown — not stated by the source
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 type	Non-Modular	Non-Modular
PCI Express connectorKnown for one	Unknown — not stated by the source	Yes
Performance2 differ
Purpose	PC	PC
Power supply unit (PSU) form factorDiffers	TFX	ATX
80 PLUS certificationDiffers	80 PLUS Bronze	80 PLUS
Noise levelKnown for one	31.4 dB	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	100000 h	Unknown — not stated by the source
ATX versionKnown for one	Unknown — not stated by the source	2.3
Design1 differ
Product colour	Black	Black
Cooling type	Active	Active
Fan diameterDiffers	8 cm	12 cm
Number of fans	1 fan(s)	1 fan(s)
Fan speedKnown for one	1815	Unknown — not stated by the source
Fan locationKnown for one	Unknown — not stated by the source	Top
IlluminationKnown for one	Unknown — not stated by the source	No
On/off switchKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 35 °C	0 - 40 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 70 °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%
Certificates1 differ
Compliance certificates	RoHS	RoHS
CertificationDiffers	CE, CB, TÜV	NTRL, FCC, CB, CE, KC, TUV
Weight & dimensions4 differ
WidthDiffers	85 mm	150 mm
DepthDiffers	170 mm	140 mm
HeightDiffers	65 mm	87 mm
WeightDiffers	1.08 kg	1.95 kg
Packaging dataidentical
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthKnown for one	190 mm	Unknown — not stated by the source
Package depthKnown for one	85 mm	Unknown — not stated by the source
Package heightKnown for one	159 mm	Unknown — not stated by the source
Package weightKnown for one	1.4 kg	Unknown — not stated by the source
Technical detailsidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Other featuresidentical
Warranty cardKnown for one	Yes	Unknown — not stated by the source
Noise level (silent mode, <30%)Known for one	11.7 dB	Unknown — not stated by the source
Noise level (quiet mode, 50%)Known for one	14.6 dB	Unknown — not stated by the source
Noise level (full-load mode, 100%)Known for one	31.4 dB	Unknown — not stated by the source
Power over Ethernet (PoE)Known for one	Unknown — not stated by the source	No

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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