Almost definitely not, but as you have both in front of you, you're the best person to find out for us
Data Hoarder
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
but as you have both in front of you
My Easystore enclosures aren't kept locally, I only have the MyBooks nearby at the moment.
I can find out eventually but it will be a while before I get to them.
Got my hands on my enclosures.
These Easystore PCBs can be placed into these MyBooks. They fit just fine.
The PCBs appear identical. The Easystore has an LED but that's just missing from the MyBook. Same board, different components, but most are the same. Even the winbond chip has identical markings but some others do not.