Product comparison · 2 power supply units

be quiet! System Power B8 vs Zalman ZM1000-EBT power supply unit

35specifications compared
23differ
12identical
30known for one product only

Key differences

Total power
- System Power B8:350 W
- ZM1000-EBT power supply unit:1000 W
AC input voltage
- System Power B8:200 - 240 V
- ZM1000-EBT power supply unit:100 - 240 V
AC input frequency
- System Power B8:50 Hz
- ZM1000-EBT power supply unit:50 - 60 Hz
Input current
- System Power B8:3 A
- ZM1000-EBT power supply unit:15 A
Power factor
- System Power B8:0.98
- ZM1000-EBT power supply unit:99
Combined power (+3.3V)
- System Power B8:103 W
- ZM1000-EBT power supply unit:130 W
Combined power (+12V)
- System Power B8:324 W
- ZM1000-EBT power supply unit:1000 W
Combined power (+5V)
- System Power B8:103 W
- ZM1000-EBT power supply unit:130 W

Side by side

Differences highlightedShow differences only

Comparison of System Power B8, ZM1000-EBT
65 specifications	A be quiet! System Power B8 View product	B Zalman ZM1000-EBT power supply unit Model ZM1000-EBT View product
Power12 differ
Total powerDiffers	350 W	1000 W
AC input voltageDiffers	200 - 240 V	100 - 240 V
AC input frequencyDiffers	50 Hz	50 - 60 Hz
Input currentDiffers	3 A	15 A
Maximum input current (@110V)Known for one	Unknown — not stated by the source	15 A
Power factorDiffers	0.98	99
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	103 W	130 W
Combined power (+12V)Differs	324 W	1000 W
Combined power (+5V)Differs	103 W	130 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	15 W
Max output current (+3.3V)Differs	19 A	25 A
Max output current (+12V)Known for one	Unknown — not stated by the source	83.4 A
Max output current (+5V)Differs	15 A	25 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)Known for one	Unknown — not stated by the source	4 A
EfficiencyDiffers	87%	92%
Power protection featuresDiffers	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Over current, Over power, Over voltage, Short circuit, Under voltage
Max output current (+12V1)Known for one	20 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	16 A	Unknown — not stated by the source
Hold timeKnown for one	18 ms	Unknown — not stated by the source
Ports & interfaces3 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Motherboard power cable lengthKnown for one	Unknown — not stated by the source	55 cm
Number of SATA power connectorsDiffers	4	3
SATA power cable lengthKnown for one	Unknown — not stated by the source	450 mm
PCI Express power connectors (6+2 pin)Differs	1	6
PCI Express power cable lengthKnown for one	Unknown — not stated by the source	55 cm
CPU P4 connector (4-pin)Known for one	Unknown — not stated by the source	1
CPU power connector (4+4 pin)	Yes	Yes
CPU power cable lengthKnown for one	Unknown — not stated by the source	65 cm
PCI Express connectorKnown for one	Unknown — not stated by the source	Yes
Cabling typeDiffers	Non-Modular	Fully-Modular
Number of PATA power connectorsKnown for one	2	Unknown — not stated by the source
ATX power connector (20+4 pin)Known for one	Yes	Unknown — not stated by the source
Performance2 differ
Purpose	PC	PC
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certificationDiffers	80 PLUS	80 PLUS Gold
ATX versionDiffers	2.4	2.3
EPS versionKnown for one	Unknown — not stated by the source	2.92
Design2 differ
Product colourDiffers	Grey	Black
Cooling type	Active	Active
Fan diameterDiffers	12 cm	13.5 cm
Number of fans	1 fan(s)	1 fan(s)
Fan location	Top	Top
Fan speedKnown for one	1650	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 40 °C	0 - 50 °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%
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	AC, CPU, PCIe, SATA
Certificates1 differ
Compliance certificates	RoHS	RoHS
CertificationDiffers	ErP, WEEE	CE, CB, EAC, NRTL, FCC, TUV, KC
Weight & dimensions2 differ
Width	150 mm	150 mm
DepthDiffers	140 mm	180 mm
Height	86 mm	86 mm
WeightDiffers	1.6 kg	4.6 kg
Packaging dataidentical
Package typeKnown for one	Unknown — not stated by the source	Box
Other featuresidentical
Voltage toleranceKnown for one	Unknown — not stated by the source	99%
Maximum currentKnown for one	Unknown — not stated by the source	15 A
Noise level (quiet mode, 50%)Known for one	12.3 dB	Unknown — not stated by the source
Noise level (full-load mode, 100%)Known for one	24.9 dB	Unknown — not stated by the source
Safety regulation & standardsidentical
SafetyKnown for one	CE, CB, TÜV, RCM, CU	Unknown — not stated by the source
Technical detailsidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source

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