ADATA 320GB Classic CH91 2.5” external HDD vs ADATA 500GB Classic CH91 2.5” external HDD

Comparison of 320GB Classic CH91 2.5” external HDD, 500GB Classic CH91 2.5” external HDD

15 specifications	A ADATA 320GB Classic CH91 2.5” external HDDView product	B ADATA 500GB Classic CH91 2.5” external HDDView product
Hard drive1 differ
HDD capacityDiffers	320 GB	500 GB
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
Type	HDD	HDD
Ports & interfacesidentical
USB connector	USB	USB
USB version	2.0	2.0
Featuresidentical
Product colour	White	White
Plug and Play	Yes	Yes
Poweridentical
Bus powered	USB	USB
Other featuresidentical
Drive device, transfer rate	30 MB/s	30 MB/s
HDD transfer rate	480 Mbit/s	480 Mbit/s
Internal	No	No
USB cableKnown for one	USB	—Unknown — not stated by the source
USB required	Yes	Yes
Dimensions (WxDxH)	82 x 134 x 15.7 mm	82 x 134 x 15.7 mm

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.