Acer 320GB 7.2k RPM in carrier vs Acer SATA II HDD 640GB 7.2K

Comparison of 320GB 7.2k RPM in carrier, SATA II HDD 640GB 7.2K

7 specifications	A Acer 320GB 7.2k RPM in carrierView product	B Acer SATA II HDD 640GB 7.2KView product
Features1 differ
HDD capacityDiffers	320 GB	640 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Interface	Serial ATA II	Serial ATA II
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Other featuresidentical
Internal	Yes	Yes
Compatible productsKnown for one	—Unknown — not stated by the source	G330, G540, R720, R5250

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.