Which one is newer?

I’ve seen different versions of the RE4-GP.  So which version of the RE4-GP is newer?




I have a WD2002FYPS-02W3B0 w/ firmware 04.01G01.  Just got it a week ago from Amazon.

WD2002FYPS-01U1B1 model has certain issues and WD had released a new FW for that.


WD2002FYPS-02W3B0 seems to be newer but it has other broblems as well. (Google the part number)

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Hmmm…  All the problems I see are regarding using the RE4-GP in a NAS or RAID array.  I’m just using it as a hotswap / backup drive.

I should be fine then.