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Product comparison · 2 external hard drives

ADATA CH94 Portable 640GB vs Freecom XXS 640GB

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  • 18specifications compared
  • 7differ
  • 11identical
  • 16known for one product only

Key differences

  • Product colour
    • White
    • Black
  • Width
    • 87.5 mm
    • 109.8 mm
  • Depth
    • 130.9 mm
    • 79.5 mm
  • Height
    • 20.3 mm
    • 13.5 mm
  • Weight
    • 172 g
    • 155 g
  • USB cable
    • USB
    • Yes

Side by side

Differences highlightedShow differences only
34 specifications
A

ADATA

CH94 Portable 640GBView product
B

Freecom

XXS 640GBView product
Hard driveidentical
HDD capacity640 GB640 GB
HDD size2.5"2.5"
InterfaceKnown for oneSerial ATA
TypeHDDHDD
Ports & interfacesidentical
Maximum data transfer rate480 Mbit/s480 Mbit/s
Ethernet LANKnown for oneNo
eSATAKnown for oneNo
FireWire 400Known for oneNo
FireWire 800Known for oneNo
USB connectorKnown for oneUSB
USB versionKnown for one2.0
Features1 differ
Product colourDiffersWhiteBlack
Plug and PlayYesYes
Poweridentical
Bus poweredUSBUSB
Operational conditionsidentical
Operating temperature (T-T)Known for one10 - 35 °C
Storage temperature (T-T)Known for one-20 - 70 °C
Weight & dimensions4 differ
WidthDiffers87.5 mm109.8 mm
DepthDiffers130.9 mm79.5 mm
HeightDiffers20.3 mm13.5 mm
WeightDiffers172 g155 g
Packaging dataidentical
User guideKnown for oneYes
Other features2 differ
InternalNoNo
Mac compatibilityYesYes
Mean time between failures (MTBF)Known for one50000 h
Minimum RAMKnown for one256 MB
Minimum processorKnown for onePentium III, 900MHz/PowerPC G3/G4/G5
Quick start guideYesYes
USB 2.0 ports quantity11
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
USB cableDiffersUSBYes
USB requiredYesYes
Compatible operating systemsDiffersWindows 2000, XP, Vista, 7 Mac OS X 10.4 Linux Kernal 2.4Windows 2000 / XP / Vista, Mac OS X v10.3
MaterialKnown for onePlastic
Dimensions (WxDxH)Known for one87.5 x 130.88 x 20.3 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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