The Linksys Wireless-G Notebook Adapter WPC54G v1 is a wireless network adapter designed for laptops. It provides wireless connectivity using the 802.11g Wi-Fi standard, offering speeds up to 54 Mbps and compatibility with most home and office wireless routers. The card uses the PCMCIA/PC Card interface, which was commonly used in laptops before the widespread adoption of built-in Wi-Fi or newer standards like PCIe.

The WPC54G v1 version is one of the first in the series and may require a specific driver to function correctly on your computer, especially if you're using a modern operating system.