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Whats the differnce between SATA II (3 Gb/s) and SATA III (6 Gb/s) Hdds

Hi,

Im using a Lenovo T520 myself.

I looking for all round laptop sata hard drives.

On a supplier site I see....

SATA II (3 Gb/s) and SATA III (6 Gb/s) Hdds

Should I just go for SATA II . Im buying several for laptop repairs.

Thanks

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John

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David

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ZamZ0

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Gary Case

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fcek

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Thanks everyone.

After another long day I shall order the correct parts and hit the hay.

After a juicy well earned pint of Guinness :-)

pgm554

Nobody is shipping high capacity drives with 512byte sector count anymore ,it's all 4k,so it is what it is.

As for the SATA III interface,it's basically about burst rates between the HDA and onboard controller.

You will not get sustained 6gb from SATA III or 3gb from II.

SAS and SCSI can give you a sustained throughput close to their intended spec,but not SATA.