Need explaination for Western Digital HDD naming ...

[waltereo]

Hi,

Could someone explain how WD name their HDD ?
What is the meanning of each letter
for example : WD3200AAKS

WD = (obvious) western digital

320 = 320 gig

0 = ???
AA=???
K=???
S=????


They also have : the JS, YS ??

Thanks

 

[sandmanwn]

Straight from the horses mouth.
http://support.wdc.com/warranty/policy.asp

The second image on this page gives the breakdown of their product line by category. There is more to it but this is a good starting point.

YS is Enterprise class. Usually louder as noise dampening isnt a concern.

Others differentiate between noise dampening, 8mb cache vs 16mb cache, single platter vs multi platter, MTBF ratings, TCQ, NCQ, etc, etc...

Its not the clearest naming scheme by any means.