Product comparison · 2 external hard drives

Iomega 250GB Portable Hard Drive vs Iomega UltraMax Single Desktop Hard Drive 500 GB

Key differences

HDD capacity
- 250GB Portable Hard Drive:250 GB
- UltraMax Single Desktop Hard Drive 500 GB:500 GB
Product colour
- 250GB Portable Hard Drive:Silver
- UltraMax Single Desktop Hard Drive 500 GB:Grey
External power adapter
- 250GB Portable Hard Drive:No
- UltraMax Single Desktop Hard Drive 500 GB:Yes

Differences highlightedShow differences only

Comparison of 250GB Portable Hard Drive, UltraMax Single Desktop Hard Drive 500 GB
22 specifications	A Iomega 250GB Portable Hard Drive View product	B Iomega UltraMax Single Desktop Hard Drive 500 GB View product
Hard drive1 differ
HDD capacityDiffers	250 GB	500 GB
HDD speed	7200 RPM	7200 RPM
Type	HDD	HDD
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Ports & interfacesidentical
USB connectorKnown for one	USB	Unknown — not stated by the source
USB versionKnown for one	2.0	Unknown — not stated by the source
FireWire 400	Yes	Yes
FireWire 800Known for one	Unknown — not stated by the source	Yes
Features1 differ
Product colourDiffers	Silver	Grey
Power1 differ
Bus poweredKnown for one	USB	Unknown — not stated by the source
External power adapterDiffers	No	Yes
Other features2 differ
FireWire requiredKnown for one	Yes	Unknown — not stated by the source
Internal	No	No
Mac compatibility	Yes	Yes
Minimum RAM	256 MB	256 MB
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 /+	Microsoft Windows Vista / 2000 / XP Home / XP x64 / Mac OS X 10.1
Dimensions (W x D x H) (imperial)Differs	88.9 x 19.1 x 133.3 mm (3.5 x 0.75 x 5.25")	139.7 x 240 x 41.4 mm (5.5 x 9.45 x 1.63")
Weight (imperial)Known for one	0.218 kg (0.48 lbs)	Unknown — not stated by the source
Minimum processorKnown for one	Unknown — not stated by the source	Pentium 300 Mhz
Quick start guideKnown for one	Unknown — not stated by the source	Yes
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1

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.