Hitachi/HGST 500 GB 5400 RPM drive

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I have been wanting to get a 500 GB internal drive for laptop, and I want to know user experience of the Hitachi drives. I have the following in mind, actually: 5K500.B drive

Hitachi Travelstar 2.5" 500GB 5400RPM SATA II 8MB Cache Internal Hard Drive 0A57915

See http://www.amazon.com/Hitachi-Travelstar-5400RPM-Internal-0A57915/dp/B0029LHVLO/ref=cm_cr_pr_product_top

or http://www.newegg.com/Product/Product.aspx?Item=N82E16822145257

Apparently Hitachi consumer segment is not as large as WD or Seagate but from my reading, Hitachi has its own reputation of goodness:

- The drives come with 3 year warranty which is getting rare nowadays.

- the 5400 RPM drive seems to be one that is best in terms of power/performance balance (I don't need superfast drive but I care for power savings for laptop battery operation)

If anyone has opinion for or against this product, please speak up!

I also need clarification for some product numbers floating out there:

The official product guide from Hitachi gives "HTS545050B9A300" as the model number and "0A57915" as part number. However there is another part number out there that I could not trace in Hitachi's website:

part no. 0Y30055


The description page also says "5K500.B" drive but why is the part number different?

Also, anyone would comment on the ultrathin version of 500 GB drive (Z5K500)?



This says "0J11285" part number.


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SR just reviewed the WD Scorpio Blue thin next to the Z5K500...


And there appears to be not much of a performance difference between the regular 5K00.B and the Z5K500, per:

At least among its contemporaries a few years ago, 5K500.B looks fine. By today's standards the Scorpio Blue thin, as you've already read in the SR review, is definitely faster.


All current 5K500 production should be 5K500.B model, the older models are long since out of production.

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