Product comparison · 2 external hard drives

ADATA CH-81 external hard drive vs Seagate FreeAgent Desk 2TB

Key differences

Differences highlightedShow differences only

Comparison of CH-81, FreeAgent Desk 2TB
20 specifications	A ADATA CH-81 external hard drive Model CH-81 View product	B Seagate FreeAgent Desk 2TB View product
Hard drive2 differ
HDD capacityDiffers	320 GB	2 TB
HDD speedDiffers	5400 RPM	7200 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
USB connector	USB	USB
USB version	2.0	2.0
Featuresidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Packaging dataidentical
Cables includedKnown for one	USB	Unknown — not stated by the source
Other featuresidentical
Drive device, transfer rateKnown for one	30 MB/s	Unknown — not stated by the source
Internal	No	No
Compatible operating systemsKnown for one	Windows 2000, XP, Vista Mac OS X 10.4 Linux Kernal 2.4	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	82 x 134 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	33 mm
DepthKnown for one	Unknown — not stated by the source	172 mm
HeightKnown for one	Unknown — not stated by the source	175 mm
WeightKnown for one	Unknown — not stated by the source	1 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.