Acer KH.75004.005 internal hard drive vs Acer KH.75008.021 internal hard drive

Comparison of KH.75004.005, KH.75008.021

13 specifications	A Acer KH.75004.005 internal hard drive Model KH.75004.005 View product	B Acer KH.75008.021 internal hard drive Model KH.75008.021 View product
Features1 differ
HDD capacity	750 GB	750 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeKnown for one	3.5"	—Unknown — not stated by the source
Interface	Serial ATA	Serial ATA
Type	HDD	HDD
HDD interface transfer rate	1.5 Gbit/s	1.5 Gbit/s
Storage drive buffer sizeKnown for one	—Unknown — not stated by the source	16 MB
Poweridentical
Operating voltageKnown for one	5 / 12 V	—Unknown — not stated by the source
Weight & dimensionsidentical
Height	9.5 mm	9.5 mm
Packaging dataidentical
Quantity per pack	1 pc(s)	1 pc(s)
Other featuresidentical
Windows operating systems supported	Yes	Yes
Mac operating systems supported	Yes	Yes
Linux operating systems supported	Yes	Yes

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.