Product comparison · 2 power supply units

Zalman ZM500-RS power supply unit vs Zalman ZM500-ST power supply unit

14specifications compared
7differ
7identical
11known for one product only

Key differences

Input current
- ZM500-RS power supply unit:4 - 8 A
- ZM500-ST power supply unit:5 - 10 A
Efficiency
- ZM500-RS power supply unit:87%
- ZM500-ST power supply unit:86%
Number of SATA power connectors
- ZM500-RS power supply unit:2
- ZM500-ST power supply unit:6
Peripheral (Molex) power connectors (4-pin)
- ZM500-RS power supply unit:5
- ZM500-ST power supply unit:Yes
PCI Express power connectors (6-pin)
- ZM500-RS power supply unit:1
- ZM500-ST power supply unit:Yes
Operating temperature (T-T)
- ZM500-RS power supply unit:10 - 40 °C
- ZM500-ST power supply unit:0 - 40 °C

Side by side

Differences highlightedShow differences only

Comparison of ZM500-RS, ZM500-ST
25 specifications	A Zalman ZM500-RS power supply unit Model ZM500-RS View product	B Zalman ZM500-ST power supply unit Model ZM500-ST View product
Power3 differ
Total power	500 W	500 W
AC input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Input currentDiffers	4 - 8 A	5 - 10 A
EfficiencyDiffers	87%	86%
Power protection featuresDiffers	Over current, Over voltage, Short circuit, Under voltage	Overload, Short circuit
AC input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
Ports & interfaces3 differ
Number of SATA power connectorsDiffers	2	6
Peripheral (Molex) power connectors (4-pin)Differs	5	Yes
PCI Express power connectors (6-pin)Differs	1	Yes
PCI Express power connectors (8-pin)Known for one	1	Unknown — not stated by the source
CPU power connector (4+4 pin)Known for one	Yes	Unknown — not stated by the source
ATX power connector (20+4 pin)Known for one	Yes	Unknown — not stated by the source
Cabling type	Non-Modular	Non-Modular
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
Floppy drive power connectorKnown for one	Unknown — not stated by the source	1
Performanceidentical
Power supply unit (PSU) form factor	ATX	ATX
Compatible productsKnown for one	PC	Unknown — not stated by the source
Designidentical
Product colourKnown for one	Grey	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	10 - 40 °C	0 - 40 °C
Storage temperature (T-T)	-20 - 80 °C	-20 - 80 °C
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Safety regulation & standardsidentical
SafetyKnown for one	FCC, CE, CB	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	80 PLUS Bronze, NVIDIA SLI	Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)	150 x 140 x 86 mm	150 x 140 x 86 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.

More power supply unit comparisons

All power supply unit comparisons