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Product comparison · 2 external hard drives

Acer 20GB USB 2.0 Pocket hard disk drive vs Acer External HDD 250GB SATA (USB Interface)

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  • 4specifications compared
  • 2differ
  • 2identical
  • 16known for one product only

Key differences

  • HDD capacity
    • 20 GB
    • 250 GB
  • HDD size
    • 1.8"
    • 2.5"

Side by side

Differences highlightedShow differences only
20 specifications
A

Acer

20GB USB 2.0 Pocket hard disk driveView product
B

Acer

External HDD 250GB SATA (USB Interface)View product
Hard drive2 differ
HDD capacityDiffers20 GB250 GB
HDD speedKnown for one4200 RPM
HDD sizeDiffers1.8"2.5"
TypeHDDHDD
Storage drive average seek timeKnown for one15 ms
Storage drive buffer sizeKnown for one0.5 MB
InterfaceKnown for oneSerial ATA
Ports & interfacesidentical
USB connectorKnown for oneUSB
USB versionKnown for one2.0
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 50 °C
Operating relative humidity (H-H)Known for one5 - 90%
Weight & dimensionsidentical
WidthKnown for one100 mm
DepthKnown for one60 mm
HeightKnown for one8.7 mm
Other featuresidentical
Drive device, transfer rateKnown for one480 MB/s
InternalNoNo
Dimensions (WxDxH)Known for one100 x 60 x 8.7 mm
I/O portsKnown for one1 x mini-USB Type B
USB 2.0 ports quantityKnown for one1
Compatible operating systemsKnown for oneWindows Vista / 98SE / ME / 2000 / XP, Mac OS 9.0 +

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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