Acer 640Gb USB 2.0 vs Buffalo MiniStation external hard drive

Comparison of 640Gb USB 2.0, MiniStation

21 specifications	A Acer 640Gb USB 2.0View product	B Buffalo MiniStation external hard drive Model MiniStation View product
Hard drive1 differ
HDD capacityDiffers	640 GB	500 GB
Type	HDD	HDD
HDD speedKnown for one	5400 RPM	—Unknown — not stated by the source
HDD sizeKnown for one	2.5"	—Unknown — not stated by the source
Ports & interfacesidentical
Maximum data transfer rate	480 Mbit/s	480 Mbit/s
USB connector	USB	USB
USB version	2.0	2.0
USB data transfer ratesKnown for one	—Unknown — not stated by the source	480 Mbit/s
Featuresidentical
Product colour	Black	Black
Windows operating systems supportedKnown for one	—Unknown — not stated by the source	Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium
Mac operating systems supportedKnown for one	—Unknown — not stated by the source	Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion
CertificationKnown for one	CE, FCC	—Unknown — not stated by the source
Poweridentical
Bus powered	USB	USB
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	77 mm
DepthKnown for one	—Unknown — not stated by the source	14 mm
HeightKnown for one	—Unknown — not stated by the source	114 mm
WeightKnown for one	—Unknown — not stated by the source	165 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.