Product comparison · 2 external hard drives

ADATA CH91 external hard drive vs Seagate FreeAgent XTreme 2.0TB

5specifications compared
3differ
2identical
19known for one product only

Key differences

HDD capacity
- CH91 external hard drive:320 GB
- FreeAgent XTreme 2.0TB:2 TB
HDD size
- CH91 external hard drive:2.5"
- FreeAgent XTreme 2.0TB:3.5"

Side by side

Differences highlightedShow differences only

Comparison of CH91, FreeAgent XTreme 2.0TB
24 specifications	A ADATA CH91 external hard drive Model CH91 View product	B Seagate FreeAgent XTreme 2.0TB View product
Hard drive2 differ
HDD capacityDiffers	320 GB	2 TB
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
HDD sizeDiffers	2.5"	3.5"
Ports & interfacesidentical
Maximum data transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
USB connectorKnown for one	USB	Unknown — not stated by the source
USB versionKnown for one	2.0	Unknown — not stated by the source
eSATAKnown for one	Unknown — not stated by the source	Yes
FireWire 400Known for one	Unknown — not stated by the source	Yes
Featuresidentical
Product colourKnown for one	Blue	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
Packaging dataidentical
Bundled softwareKnown for one	HDD to go	Unknown — not stated by the source
Other features1 differ
Interface typeKnown for one	USB 2.0	Unknown — not stated by the source
Mac compatibilityKnown for one	Yes	Unknown — not stated by the source
USB cableKnown for one	USB	Unknown — not stated by the source
Compatible operating systemsDiffers	Windows 2000, XP, Vista Mac OS X 10.4 Linux Kernal 2.4	Windows XP, Vista
Dimensions (WxDxH)Known for one	134 x 82 x 15.7 mm	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	175 mm
DepthKnown for one	Unknown — not stated by the source	33.7 mm
HeightKnown for one	Unknown — not stated by the source	172 mm
WeightKnown for one	Unknown — not stated by the source	1.39 kg

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.

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