Linksys WMP54G PCI Wireless Adapter The Linksys Wireless-G PCI Card installs in most desktops and lets you put your computer almost anywhere in the building, without the cost and hassle of running network cables. Now you don’t have to drill holes in your walls and climb through the attic or cellar to get connected to the network. Once you’re connected, you can keep in touch with your e-mail, access the Internet, use instant messaging to chat with friends, and share files and other resources such as printers and network storage with other computers on the network.