Iomega 250GB Portable Hard Drive vs Verbatim 320GB USB

Comparison of 250GB Portable Hard Drive, 320GB USB

21 specifications	A Iomega 250GB Portable Hard DriveView product	B Verbatim 320GB USBView product
Hard drive2 differ
HDD capacityDiffers	250 GB	320 GB
HDD speedDiffers	7200 RPM	5400 RPM
Type	HDD	HDD
Ports & interfacesidentical
USB connector	USB	USB
USB version	2.0	2.0
FireWire 400Known for one	Yes	—Unknown — not stated by the source
Maximum data transfer rateKnown for one	—Unknown — not stated by the source	480 Mbit/s
Featuresidentical
Product colourKnown for one	Silver	—Unknown — not stated by the source
Poweridentical
Bus powered	USB	USB
External power adapterKnown for one	No	—Unknown — not stated by the source
Other features1 differ
FireWire requiredKnown for one	Yes	—Unknown — not stated by the source
Internal	No	No
Mac compatibility	Yes	Yes
Minimum RAMKnown for one	256 MB	—Unknown — not stated by the source
USB required	Yes	Yes
Compatible operating systemsDiffers	Microsoft Windows Vista / 2000 Professional / XP Home / XP Professional / XP Professional x64; Mac OS X 10.1.5 /+	Windows 2000, XP, Vista, Mac OS 9x, Mac OS X 10.1
Dimensions (W x D x H) (imperial)Known for one	88.9 x 19.1 x 133.3 mm (3.5 x 0.75 x 5.25")	—Unknown — not stated by the source
Weight (imperial)Known for one	0.218 kg (0.48 lbs)	—Unknown — not stated by the source
Minimum system requirementsKnown for one	—Unknown — not stated by the source	USB 1.1/2.0
Dimensions (WxDxH)Known for one	—Unknown — not stated by the source	86 x 137 x 16 mm
Weight & dimensionsidentical
WeightKnown for one	—Unknown — not stated by the source	147 g

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.