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Product comparison · 2 external hard drives

ADATA 640GB Classic CH91 2.5” vs ADATA NH92 Portable 500GB

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  • 15specifications compared
  • 4differ
  • 11identical
  • 9known for one product only

Key differences

  • HDD capacity
    • 640 GB
    • 500 GB
  • Product colour
    • White
    • Pink
  • Dimensions (WxDxH)
    • 82 x 134 x 15.7 mm
    • 75.8 x 118.5 x 12 mm

Side by side

Differences highlightedShow differences only
24 specifications
A

ADATA

640GB Classic CH91 2.5”View product
B

ADATA

NH92 Portable 500GBView product
Hard drive1 differ
HDD capacityDiffers640 GB500 GB
HDD speed5400 RPM5400 RPM
HDD size2.5"2.5"
TypeHDDHDD
InterfaceKnown for oneSerial ATA
Ports & interfacesidentical
Maximum data transfer rateKnown for one480 Mbit/s
USB connectorKnown for oneUSB
USB versionKnown for one2.0
Features1 differ
Product colourDiffersWhitePink
Plug and PlayYesYes
Poweridentical
Bus poweredUSBUSB
Weight & dimensionsidentical
WeightKnown for one152 g
Packaging dataidentical
Bundled softwareHDD to goHDD to go
Other features2 differ
CompatibilityKnown for oneWindows XP/Vista/7, Mac OS X 10.5, 10.6.
Drive device, transfer rate30 MB/s30 MB/s
InternalNoNo
Mac compatibilityYesYes
MaterialKnown for oneAluminium
Quick start guideKnown for oneYes
USB 2.0 ports quantity11
USB cableKnown for oneUSB
USB requiredYesYes
Compatible operating systemsDiffersWindows 2000, XP, Vista Mac OS X 10.4+ Linux Kernal 2.4+Windows XP/Vista/7 Mac OS X 10.4+ Linux KERNEL 2.4+
Dimensions (WxDxH)Differs82 x 134 x 15.7 mm75.8 x 118.5 x 12 mm

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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