Apple Performa 6400/180 - Manual (Page 188)

Upgrades Communications Card - 17
Note:
Some communica-
tions cards are not
compatible. Look at the
placement of the notches on
the card, and use this
illustration to help identify
a compatible card.
Communications Card
Notches
Notches
Notches
Communications Slot
Compatible
Compatible
Not compatible
Logic Board
Fence
Logic Board
(Side View)