Acer 640Gb USB 2.0 vs ADATA 1TB SH02

Comparison of 640Gb USB 2.0, 1TB SH02

22 specifications	A Acer 640Gb USB 2.0View product	B ADATA 1TB SH02View product
Hard drive1 differ
HDD capacityDiffers	640 GB	1 TB
HDD speedKnown for one	5400 RPM	—Unknown — not stated by the source
Ports & interfacesidentical
USB data transfer ratesKnown for one	—Unknown — not stated by the source	480 Mbit/s
Maximum data transfer rateKnown for one	480 Mbit/s	—Unknown — not stated by the source
Featuresidentical
Windows operating systems supportedKnown for one	—Unknown — not stated by the source	Windows 2000, Windows 2000 Professional, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Ultimate, Windows Vista Business, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Ultimate, Windows XP Home, Windows XP Professional
Mac operating systems supportedKnown for one	—Unknown — not stated by the source	Mac OS X 10.4 Tiger
Linux operating systems supportedKnown for one	—Unknown — not stated by the source	Yes
CertificationKnown for one	CE, FCC	—Unknown — not stated by the source
Power1 differ
Bus poweredDiffers	USB	No
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	77.5 mm
DepthKnown for one	—Unknown — not stated by the source	112 mm
HeightKnown for one	—Unknown — not stated by the source	15.5 mm
WeightKnown for one	—Unknown — not stated by the source	162 g
Packaging dataidentical
Cables includedKnown for one	—Unknown — not stated by the source	USB
Other featuresidentical
USB 2.0 ports quantityKnown for one	—Unknown — not stated by the source	1
USB requiredKnown for one	—Unknown — not stated by the source	Yes
Connectivity technologyKnown for one	Wired	—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.