Product comparison · 2 external hard drives

Buffalo DriveStation™Combo4 500GB vs Buffalo HD-PS400U2 external hard drive

Key differences

HDD capacity
- DriveStation™Combo4 500GB:500 GB
- HD-PS400U2 external hard drive:400 GB
HDD speed
- DriveStation™Combo4 500GB:7200 RPM
- HD-PS400U2 external hard drive:5400 RPM
Product colour
- DriveStation™Combo4 500GB:Silver
- HD-PS400U2 external hard drive:Black
Power consumption (typical)
- DriveStation™Combo4 500GB:17 W
- HD-PS400U2 external hard drive:2.5 W
Weight
- DriveStation™Combo4 500GB:1.4 kg
- HD-PS400U2 external hard drive:190 g
Dimensions (WxDxH)
- DriveStation™Combo4 500GB:36 x 227 x 127 mm
- HD-PS400U2 external hard drive:127 x 84 x 20 mm

Differences highlightedShow differences only

Comparison of DriveStation™Combo4 500GB, HD-PS400U2
20 specifications	A Buffalo DriveStation™Combo4 500GB View product	B Buffalo HD-PS400U2 external hard drive Model HD-PS400U2 View product
Hard drive2 differ
HDD capacityDiffers	500 GB	400 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Interface	Serial ATA	Serial ATA
Type	HDD	HDD
Ports & interfacesidentical
Maximum data transfer rateKnown for one	Unknown — not stated by the source	480 Mbit/s
Features1 differ
Product colourDiffers	Silver	Black
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Bus poweredKnown for one	Unknown — not stated by the source	USB
Power consumption (typical)Differs	17 W	2.5 W
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 35 °C
Weight & dimensions1 differ
WeightDiffers	1.4 kg	190 g
Other features2 differ
Internal	No	No
Mac compatibility	Yes	Yes
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
USB requiredKnown for one	Unknown — not stated by the source	Yes
Compatible operating systemsDiffers	Windows Vista, WindowsXP, Windows2000, Mac OS X	Windows XP, Windows 2000 Mac OS X
Dimensions (WxDxH)Differs	36 x 227 x 127 mm	127 x 84 x 20 mm
Power requirementsKnown for one	AC100-240V 50/60 Hz	Unknown — not stated by the source
I/O portsKnown for one	1 x Mini USB 1 x 6-pin IEEE1394a 2 x 9-pin IEEE1394b 1 x eSATA	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.