Product comparison · 2 external hard drives

Acer 640Gb USB 2.0 vs Samsung Portable HDD

Key differences

Differences highlightedShow differences only

Comparison of 640Gb USB 2.0, Portable HDD
17 specifications	A Acer 640Gb USB 2.0 View product	B Samsung Portable HDD View product
Hard drive1 differ
HDD capacityDiffers	640 GB	500 GB
HDD size	2.5"	2.5"
Type	HDD	HDD
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Ports & interfaces2 differ
USB connectorDiffers	USB	Micro-USB B
USB versionDiffers	2.0	3.2 Gen 1 (3.1 Gen 1)
USB data transfer ratesKnown for one	Unknown — not stated by the source	5000 Mbit/s
Maximum data transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
Featuresidentical
Product colour	Black	Black
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	81.3 mm
DepthKnown for one	Unknown — not stated by the source	111.8 mm
HeightKnown for one	Unknown — not stated by the source	17.8 mm
WeightKnown for one	Unknown — not stated by the source	162.4 g
Other featuresidentical
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	1
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.