Product comparison · 2 power supply units

StarTech.com 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC vs StarTech.com ATXPW500PRO2 power supply unit

23specifications compared
11differ
12identical
36known for one product only

Key differences

Total power
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:450 W
- ATXPW500PRO2 power supply unit:500 W
Max output current (+3.3V)
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:20 A
- ATXPW500PRO2 power supply unit:30 A
Max output current (+5V)
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:20 A
- ATXPW500PRO2 power supply unit:45 A
Max output current (-12V)
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:0.5 A
- ATXPW500PRO2 power supply unit:1 A
Number of SATA power connectors
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:4
- ATXPW500PRO2 power supply unit:5
PCI Express power connectors (6-pin)
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:1
- ATXPW500PRO2 power supply unit:2
ATX version
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:2.3
- ATXPW500PRO2 power supply unit:2.1
Product colour
- 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC:Black
- ATXPW500PRO2 power supply unit:Silver

Side by side

Differences highlightedShow differences only

Comparison of ATX2PW450BR, ATXPW500PRO2
59 specifications	A StarTech.com 450 Watt ATX12V 2.3 80 Plus Bronze Computer Power Supply w/ Active PFC Model ATX2PW450BR View product	B StarTech.com ATXPW500PRO2 power supply unit Model ATXPW500PRO2 View product
Power4 differ
Total powerDiffers	450 W	500 W
AC input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Maximum input current (@110V)Known for one	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V,-5V	Unknown — not stated by the source
Power Factor Correction (PFC) typeKnown for one	Active	Unknown — not stated by the source
Max output current (+3.3V)Differs	20 A	30 A
Max output current (+12V1)Known for one	37 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	37 A	Unknown — not stated by the source
Max output current (+12V3)Known for one	37 A	Unknown — not stated by the source
Max output current (+12V4)Known for one	37 A	Unknown — not stated by the source
Max output current (+5V)Differs	20 A	45 A
Max output current (-12V)Differs	0.5 A	1 A
Peak powerKnown for one	Unknown — not stated by the source	650 W
Input currentKnown for one	Unknown — not stated by the source	100 A
Max output current (+12V)Known for one	Unknown — not stated by the source	18 A
EfficiencyKnown for one	Unknown — not stated by the source	72%
Ports & interfaces2 differ
Number of SATA power connectorsDiffers	4	5
Peripheral (Molex) power connectors (4-pin)Known for one	3	Unknown — not stated by the source
PCI Express power connectors (6-pin)Differs	1	2
PCI Express power connectors (8-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
ATX power connector (20+4 pin)Known for one	Yes	Unknown — not stated by the source
PCI Express connectorKnown for one	Yes	Unknown — not stated by the source
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
I/O portsKnown for one	Unknown — not stated by the source	2 x SP4, 5 x LP4
Performance1 differ
80 PLUS certificationKnown for one	80 PLUS Bronze	Unknown — not stated by the source
ATX versionDiffers	2.3	2.1
Noise levelKnown for one	Unknown — not stated by the source	33.31 dB
Bearing technologyKnown for one	Unknown — not stated by the source	FDB
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	100000 h
Design2 differ
Product colourDiffers	Black	Silver
Cooling typeKnown for one	Active	Unknown — not stated by the source
Fan diameterDiffers	12 cm	8 cm
Fan locationKnown for one	Top	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source
Fan speedKnown for one	Unknown — not stated by the source	3500
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Weight & dimensions1 differ
WidthKnown for one	68 mm	Unknown — not stated by the source
DepthKnown for one	150 mm	Unknown — not stated by the source
HeightKnown for one	140 mm	Unknown — not stated by the source
WeightDiffers	197 g	1.8 kg
Packaging data1 differ
Package widthKnown for one	215 mm	Unknown — not stated by the source
Package depthKnown for one	242 mm	Unknown — not stated by the source
Package heightKnown for one	127 mm	Unknown — not stated by the source
Package weightDiffers	2.41 kg	2.2 kg
Other featuresidentical
Maximum currentKnown for one	60 A	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	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.

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