Product comparison · 2 external hard drives

ADATA 320GB CH94 vs ADATA CH94 Portable 640GB

13specifications compared
6differ
7identical
15known for one product only

Key differences

HDD capacity
- 320GB CH94:320 GB
- CH94 Portable 640GB:640 GB
Product colour
- 320GB CH94:Black
- CH94 Portable 640GB:White
Bus powered
- 320GB CH94:No
- CH94 Portable 640GB:USB
Width
- 320GB CH94:130.6 mm
- CH94 Portable 640GB:87.5 mm
Depth
- 320GB CH94:86.8 mm
- CH94 Portable 640GB:130.9 mm
Height
- 320GB CH94:14.5 mm
- CH94 Portable 640GB:20.3 mm

Side by side

Differences highlightedShow differences only

Comparison of 320GB CH94, CH94 Portable 640GB
28 specifications	A ADATA 320GB CH94 View product	B ADATA CH94 Portable 640GB View product
Hard drive1 differ
HDD capacityDiffers	320 GB	640 GB
HDD size	2.5"	2.5"
Type	HDD	HDD
InterfaceKnown for one	Serial ATA	Unknown — not stated by the source
Ports & interfacesidentical
Maximum data transfer rate	480 Mbit/s	480 Mbit/s
USB connector	USB	USB
USB version	2.0	2.0
USB data transfer ratesKnown for one	480 Mbit/s	Unknown — not stated by the source
Features1 differ
Product colourDiffers	Black	White
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Windows operating systems supportedKnown for one	Windows 2000, Windows 7 Home Basic, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Starter, Windows 7 Ultimate, Windows Vista Business, Windows Vista Enterprise, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Ultimate, Windows XP Home, Windows XP Professional	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Power1 differ
Bus poweredDiffers	No	USB
Weight & dimensions3 differ
WidthDiffers	130.6 mm	87.5 mm
DepthDiffers	86.8 mm	130.9 mm
HeightDiffers	14.5 mm	20.3 mm
Weight	172 g	172 g
Other featuresidentical
InternalKnown for one	Unknown — not stated by the source	No
Mac compatibilityKnown for one	Unknown — not stated by the source	Yes
MaterialKnown for one	Unknown — not stated by the source	Plastic
Quick start guideKnown for one	Unknown — not stated by the source	Yes
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
USB cableKnown for one	Unknown — not stated by the source	USB
USB required	Yes	Yes
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 2000, XP, Vista, 7 Mac OS X 10.4 Linux Kernal 2.4
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	87.5 x 130.88 x 20.3 mm
Connectivity technologyKnown for one	Wired	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.

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