Patent ID: 6863557

Claim:
A removable expansion module of a first type for use with a removable expansion module of a second type, said module of a second type being a removable device compatible with a first type of expansion slot for removable devices, said module of a first type comprising: a) a printed circuit board (PCB); b) an I/O connector mounted on the PCB; c) a first outside frame having an opening to permit and guide the insertion of said module of said second type above the I/O connector; and d) a contact assembly mounted on the PCB, the assembly including a raised shelf having a set of contact fingers electrically coupled to said PCB, at least two side stops, and an end stop; wherein the I/O connector, the first outside frame, and the contact assembly are cooperatively aligned so as to guide the insertion of said module of said second type within said module of said first type so as to mate with said contact fingers for electrically coupling said module of said second type with said PCB; and wherein said module of a first type is a removable device compatible with a second type of expansion slot for removable devices.