Product comparison · 2 external hard drives

ADATA 320GB Classic CH91 2.5” external HDD vs ADATA CH91 external hard drive

Key differences

Product colour
- 320GB Classic CH91 2.5” external HDD:White
- CH91 external hard drive:Blue
Dimensions (WxDxH)
- 320GB Classic CH91 2.5” external HDD:82 x 134 x 15.7 mm
- CH91 external hard drive:134 x 82 x 15.7 mm

Differences highlightedShow differences only

Comparison of 320GB Classic CH91 2.5” external HDD, CH91
20 specifications	A ADATA 320GB Classic CH91 2.5” external HDD View product	B ADATA CH91 external hard drive Model CH91 View product
Hard driveidentical
HDD capacity	320 GB	320 GB
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
Type	HDD	HDD
Ports & interfacesidentical
Maximum data transfer rateKnown for one	Unknown — not stated by the source	480 Mbit/s
USB connector	USB	USB
USB version	2.0	2.0
Features1 differ
Product colourDiffers	White	Blue
Plug and Play	Yes	Yes
Poweridentical
Bus powered	USB	USB
Packaging dataidentical
Bundled softwareKnown for one	Unknown — not stated by the source	HDD to go
Other features1 differ
Interface typeKnown for one	Unknown — not stated by the source	USB 2.0
Internal	No	No
Mac compatibilityKnown for one	Unknown — not stated by the source	Yes
USB cable	USB	USB
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 2000, XP, Vista Mac OS X 10.4 Linux Kernal 2.4
Dimensions (WxDxH)Differs	82 x 134 x 15.7 mm	134 x 82 x 15.7 mm
Drive device, transfer rateKnown for one	30 MB/s	Unknown — not stated by the source
HDD transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
USB requiredKnown for one	Yes	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.