Can anyone explain what “NESN” means?
Is this some kind of fault or message?
It’s a coding at the end of some of WD’s model numbers.
eg.
MyBook Essential 1TB: WDBAAF0010HBK-NESN
WDTV Live Plus: WDBABX0000NBK-NESN
As to exactly what’s coded by it, probably only WD knows.