XP 2655

The XP 2655 was one of Olivetti's most used case design and went through 3 major revisions. It was used in the early 90's.

First Style XP 2655
The First Style XP 2655 case design was used for the Olivetti M300-01, M300-05, M300-05E, M300-10, M300-25 (possibly) and P500/E. It looked like this...

Second Style XP 2655
The Second Style XP 2655 case design was used for the Olivetti 290-30, M290-30 and M380-40. It differs greatly from the First Style XP 2655. To make things confusing, the Olivetti M380-40's bottom part of the case differs from the M290-30's....

Third Style XP 2655
The Third Style XP 2655 case design was used for the Olivetti M300-08, M300-15, M300-25 (possibly), M300-30, M300-30/P, M400-10, M400-40, M400-60, some Olivetti M4 modulos and some Olivetti M6 supremas. This case design is very similar to the Second Style XP 2655 but it has space for 2 lights placed vertically next to the power button (due to the abscence of consoles).