Seagate for Mac 640 GB vs Seagate Pro for Mac 500 GB

Comparison of for Mac 640 GB, Pro for Mac 500 GB

8 specifications	A Seagate for Mac 640 GBView product	B Seagate Pro for Mac 500 GBView product
Hard drive2 differ
HDD capacityDiffers	640 GB	500 GB
HDD speedDiffers	5400 RPM	7200 RPM
Type	HDD	HDD
Ports & interfacesidentical
USB connector	USB	USB
USB version	2.0	2.0
FireWire 400	Yes	Yes
FireWire 800	Yes	Yes
Other featuresidentical
Internal	No	No

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.