I might need to buy a Ethernet PCI card to take the place of a bad Ethernet port on a G3/233 desktop. Can someone tell me if I can use the cards that Staples or Office depot sells? The card does not have to be made for a Mac does it? Network cards are generic correct? The cards are generic, the drivers are not. You will need a card with drivers supported by OS X. Look for the logo on the box. Craig