Need to buy a 4 tb external hard disk drive?

Hello,
to all of you.
I need to buy a 4TB External HDD, I've chosen WD's MY Book 4TB External HDD (Model No. WDBFJK00400HBK ), but before buying I want to clear some doubts, Hope to I'll get replies soon.

1. Can someone tell in the External Case, WD uses which Hard Disk means Is it Green or some one else, actually, I have read very much negative reviews about Green that it is much prone to failure compare to others, I am providing the link for same. Amazon.in:Customer Reviews: WD My Book Desktop Storage 4TB External Hard Drive USB3.

2. I have come to know about the New MY Book Model that have already come in some markets, I want to know Is it launched in India or Still I've to wait for some more time to get it.I am providing the link for this. My Book - External Hard Drive | Western Digital (WD

3. If I get the Current running model of My Book 4TB Hdd, Is it ok to get it? I want to buy only WD, because I don't rely on other brands. Hope you understand.

Hope to get reply soon.Thank You.
Regards,
GEEKCOMPUTER_GEEK
 
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