Product comparison · 2 external hard drives

Buffalo External Hard Disk 640GB vs LG XD1 USB

Key differences

HDD capacity
- External Hard Disk 640GB:640 GB
- XD1 USB:320 GB
HDD speed
- External Hard Disk 640GB:7200 RPM
- XD1 USB:5400 RPM
Bus powered
- External Hard Disk 640GB:No
- XD1 USB:USB
Dimensions (WxDxH)
- External Hard Disk 640GB:156 x 45 x 175 mm
- XD1 USB:130 x 76 x 17 mm

Differences highlightedShow differences only

Comparison of External Hard Disk 640GB, XD1 USB
21 specifications	A Buffalo External Hard Disk 640GB View product	B LG XD1 USB View product
Hard drive2 differ
HDD capacityDiffers	640 GB	320 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Ports & interfacesidentical
FireWire 400Known for one	Yes	Unknown — not stated by the source
FireWire 800Known for one	Yes	Unknown — not stated by the source
Power1 differ
Bus poweredDiffers	No	USB
External power adapterKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	130 mm
DepthKnown for one	Unknown — not stated by the source	76 mm
HeightKnown for one	Unknown — not stated by the source	17 mm
WeightKnown for one	1.2 kg	Unknown — not stated by the source
Other features1 differ
HDD transfer rateKnown for one	Unknown — not stated by the source	480 Mbit/s
Dimensions (WxDxH)Differs	156 x 45 x 175 mm	130 x 76 x 17 mm
Compatible operating systemsKnown for one	Windows Vista/XP/2000, Mac OS 10.2.7 +	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.