No that's a Mini PCI card (which is as the same suggests - a smaller, pin compatible version of a desktop PCI slot); the Wallstreet does not have this connection. This connector is mainly used in later model PC notebooks, hidden behind a small panel on the underside of the laptop.

What you need is a PCMCIA wireless card (which just to confuse is also called a PC card sometimes), of the Orinoco Gold or Silver variety - there exist third-party drivers to get this card to work under OS 8/9.

JB