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Product comparison · 2 external hard drives

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

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

Key differences

  • HDD capacity
    • 500 GB
    • 320 GB
  • Product colour
    • White
    • Black

Side by side

Differences highlightedShow differences only
18 specifications
A

ADATA

500GB Classic CH91 2.5” external HDDView product
B

ADATA

CH-81 external hard drive

Model CH-81

View product
Hard drive1 differ
HDD capacityDiffers500 GB320 GB
HDD speed5400 RPM5400 RPM
HDD size2.5"2.5"
TypeHDDHDD
Storage drive buffer sizeKnown for one8 MB
Ports & interfacesidentical
USB connectorUSBUSB
USB version2.02.0
Features1 differ
Product colourDiffersWhiteBlack
Plug and PlayYesYes
LED indicatorsKnown for oneYes
Packaging dataidentical
Cables includedKnown for oneUSB
Other featuresidentical
Drive device, transfer rate30 MB/s30 MB/s
InternalNoNo
Compatible operating systemsKnown for oneWindows 2000, XP, Vista Mac OS X 10.4 Linux Kernal 2.4
Dimensions (WxDxH)82 x 134 x 15.7 mm82 x 134 x 15.7 mm
HDD transfer rateKnown for one480 Mbit/s
USB requiredKnown for oneYes
Poweridentical
Bus poweredKnown for oneUSB

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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