Product comparison · 2 external hard drives

Seagate 3.5" External Hard Drive vs Seagate USB 2.0 Pocket Hard Drive

Key differences

HDD capacity
- 3.5" External Hard Drive:250 GB
- USB 2.0 Pocket Hard Drive:2.5 GB
HDD size
- 3.5" External Hard Drive:3.5"
- USB 2.0 Pocket Hard Drive:1"
Storage drive buffer size
- 3.5" External Hard Drive:8 MB
- USB 2.0 Pocket Hard Drive:2 MB
External power adapter
- 3.5" External Hard Drive:Yes
- USB 2.0 Pocket Hard Drive:No
Width
- 3.5" External Hard Drive:216 mm
- USB 2.0 Pocket Hard Drive:77 mm
Depth
- 3.5" External Hard Drive:76 mm
- USB 2.0 Pocket Hard Drive:77 mm
Height
- 3.5" External Hard Drive:127 mm
- USB 2.0 Pocket Hard Drive:18 mm
Mac compatibility
- 3.5" External Hard Drive:No
- USB 2.0 Pocket Hard Drive:Yes

Differences highlightedShow differences only

Comparison of 3.5" External Hard Drive, USB 2.0 Pocket Hard Drive
18 specifications	A Seagate 3.5" External Hard Drive View product	B Seagate USB 2.0 Pocket Hard Drive View product
Hard drive3 differ
HDD capacityDiffers	250 GB	2.5 GB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
HDD sizeDiffers	3.5"	1"
Type	HDD	HDD
Storage drive buffer sizeDiffers	8 MB	2 MB
Ports & interfacesidentical
USB connector	USB	USB
USB version	2.0	2.0
Featuresidentical
Plug and Play	Yes	Yes
Power1 differ
Bus powered	USB	USB
External power adapterDiffers	Yes	No
Weight & dimensions3 differ
WidthDiffers	216 mm	77 mm
DepthDiffers	76 mm	77 mm
HeightDiffers	127 mm	18 mm
WeightKnown for one	Unknown — not stated by the source	62 g
Other features2 differ
Internal	No	No
Mac compatibilityDiffers	No	Yes
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Compatible operating systemsDiffers	Microsoft Windows XP, Me, 2000, 98SE	Microsoft Windows XP, Me, 2000 Pro, 98SE Mac OS 9.2.2+

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.