The Linksys WMP110 RangePlus Wireless-G PCI Adapter is a desktop network card that provides wireless connectivity for computers. With a PC Card (PCMCIA) Type I form factor, this adapter is designed for easy installation in desktop computers. The model WMP110 is compatible with PCI ports, making it suitable for various desktop systems. This wireless adapter allows users to connect to wireless networks and access the internet without the need for a physical Ethernet connection.