Apple Power Macintosh 9600 - Manual (Page 103)

2 Pull out the port access cover and set it aside.
You won’t need the port cover for the rest of these instructions, but save it in
case you ever remove the PCI card and need to cover the port again.
3 Remove the card from its static-proof bag.
Hold the card by its edges to avoid touching the connector or any of the
components on the card.
Connector
103 Installing PCI Expansion Cards and Additional Memory