The NETGEAR FA311312 PCI Adapter is a network interface card (NIC) designed for desktop computers. It is a PCI-based Ethernet card that provides wired network connectivity, allowing your computer to connect to a local area network (LAN) via Ethernet cables. The adapter typically supports speeds of up to 10/100 Mbps (Fast Ethernet) and is often used in older systems or budget setups.

The driver for the FA311312 PCI Adapter is required for your computer to properly recognize and communicate with the network adapter. The driver allows the operating system to interface with the hardware, manage network settings, and handle network communication.