case for Atari Sys-Check V2.2 XE rev.2

Atari XE series computer expansion case. The second revision has been improved in terms of additional space for the processor with the socket, the connector accepts old-type "brown" cartridges and the PBI connector is the same size as in the 800XL.
The holes for close the housing are prepared for Tappex threaded inserts (6238 M3-303) and M3x14 DIN 7991 metric screws.
The xpin version may be useful for someone who wants to operate older-type cartridges with an opening flap using protruding pins on the connector.
I included an additional file because they can be relatively fragile and I would like to have the option to choose, with or without pins.