Product comparison · 2 external hard drives

ADATA 500GB Classic CH91 2.5” external HDD vs ADATA CH-81 external hard drive

11specifications compared
2differ
9identical
7known for one product only

Key differences

HDD capacity
- 500GB Classic CH91 2.5” external HDD:500 GB
- CH-81 external hard drive:320 GB
Product colour
- 500GB Classic CH91 2.5” external HDD:White
- CH-81 external hard drive:Black

Side by side

Differences highlightedShow differences only

Comparison of 500GB Classic CH91 2.5” external HDD, CH-81
18 specifications	A ADATA 500GB Classic CH91 2.5” external HDD View product	B ADATA CH-81 external hard drive Model CH-81 View product
Hard drive1 differ
HDD capacityDiffers	500 GB	320 GB
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Features1 differ
Product colourDiffers	White	Black
LED indicatorsKnown for one	Unknown — not stated by the source	Yes
Packaging dataidentical
Cables includedKnown for one	Unknown — not stated by the source	USB
Other featuresidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 2000, XP, Vista Mac OS X 10.4 Linux Kernal 2.4
HDD transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
USB requiredKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Bus poweredKnown for one	USB	Unknown — not stated by the source

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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