Iomega 320GB Hi-Speed USB 2.0 vs Verbatim 250GB FireWire/USB

Comparison of 320GB Hi-Speed USB 2.0, 250GB FireWire/USB

22 specifications	A Iomega 320GB Hi-Speed USB 2.0View product	B Verbatim 250GB FireWire/USBView product
Hard drive1 differ
HDD capacityDiffers	320 GB	250 GB
HDD speed	5400 RPM	5400 RPM
HDD sizeKnown for one	2.5"	—Unknown — not stated by the source
Type	HDD	HDD
Storage drive buffer sizeKnown for one	8 MB	—Unknown — not stated by the source
Ports & interfacesidentical
Maximum data transfer rate	480 Mbit/s	480 Mbit/s
Featuresidentical
Product colourKnown for one	Silver	—Unknown — not stated by the source
Plug and PlayKnown for one	Yes	—Unknown — not stated by the source
Poweridentical
Bus poweredKnown for one	USB	—Unknown — not stated by the source
Weight & dimensions1 differ
WidthKnown for one	74.4 mm	—Unknown — not stated by the source
DepthKnown for one	128.9 mm	—Unknown — not stated by the source
HeightKnown for one	12.7 mm	—Unknown — not stated by the source
WeightDiffers	170 g	164 g
Other features1 differ
Internal	No	No
Mac compatibility	Yes	Yes
Minimum RAMKnown for one	256 MB	—Unknown — not stated by the source
Minimum processorKnown for one	Pentium II, G3	—Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	1	—Unknown — not stated by the source
USB requiredKnown for one	Yes	—Unknown — not stated by the source
Compatible operating systemsDiffers	Microsoft Windows 2000 Professional / XP Home / XP Professional / XP Professional 64 / Windows Vista Mac OS X +	Windows 2000, XP, Vista, Mac OS 9x, Mac OS X 10.1
Minimum system requirementsKnown for one	—Unknown — not stated by the source	6-pin FireWire & USB 1.1/2.0
Dimensions (WxDxH)Known for one	—Unknown — not stated by the source	86 x 137 x 16 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.