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Different look of WD inernal drives
http://forum.hddguru.com/viewtopic.php?f=9&t=41471
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Author:  MNijbracht [ July 5th, 2021, 12:13 ]
Post subject:  Different look of WD inernal drives

I didn't know where to place this topic. so to avoid argument with the mod on maybe a less critical topic I'll just place it here.

I generally find Western digital sells for the same type of drive. For instance WDnnEZRZ slightly different designs. See picture. Could you tell beforehand which type ypu're gonna receive as a customer?
Is A for instance sold in yhe ISA and B in Europe?

I think that type A is made in Malaysia and B in Thailand. Though googling I f?ound that Thailand also makes type A. shell for some models. Resellers are never accurate about what they have in stock. And calling them is a bit of a hassle.

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Author:  fzabkar [ July 5th, 2021, 19:21 ]
Post subject:  Re: Different look of WD inernal drives

The suffix is different. This means they belong to different families, Apollo versus Giant. They have 6 and 8 heads, respectively, so the 6-head model would appear to be more recent.

https://support-en.wd.com/app/warrantystatus

WD40EZRZ-22GXCB0
APOLLO
5400
64M
SATA3 6GB/S
4.0 TB
6HD
SECOND TIER OEM

WD40EZRZ-00WN9B0
GIANT
5400
64M
SATA3 6GB/S
4.0 TB
8HD
STD

Author:  MNijbracht [ July 7th, 2021, 15:49 ]
Post subject:  Re: Different look of WD inernal drives

What does STD mean. Like in standard or retail version?

Author:  fzabkar [ July 7th, 2021, 16:03 ]
Post subject:  Re: Different look of WD inernal drives

MNijbracht wrote:
What does STD mean. Like in standard or retail version?

Probably.

Note that "00GXCB0" would be the retail version, whereas "22GXCB0" would be an OEM version. "GXC" is the family code.

See http://www.acelab.ru/dep.pc/doc.pc3000dos/060713.001/WD-main-N-2.pdf (Russian)

    22 = customer ID (00 = generic)
    GXC = family identifier
    B0 = customer configuration code

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