Its gonna depend on the product itself-
If it was simply returned due to not wanting it (Distance selling etc), then the manufacturers warranty will be intact. (If packaging is missing, it could be slightly different)
B-Grade HDDs as noted above are usually refurbs, on which the warranty length varies (AFAIK, its 1yr or the remainder of the original warranty)
Stuff like cases & mice would be no warranty other than the 14 days.
-Leezer-
If it was simply returned due to not wanting it (Distance selling etc), then the manufacturers warranty will be intact. (If packaging is missing, it could be slightly different)
B-Grade HDDs as noted above are usually refurbs, on which the warranty length varies (AFAIK, its 1yr or the remainder of the original warranty)
Stuff like cases & mice would be no warranty other than the 14 days.
-Leezer-