The Broadcom Skinny NetXtreme Gigabit Ethernet Windows driver is a software component that enables Windows operating systems to communicate with a Broadcom-based NetXtreme Gigabit Ethernet network adapter. Broadcom's NetXtreme family of network adapters is widely used for providing high-speed wired Ethernet connectivity, typically at 1 Gbps (Gigabit) or faster speeds.

The term "Skinny" might refer to a version of the Broadcom Ethernet driver that is lightweight or optimized for particular environments, but generally, the driver is needed to enable the adapter to function properly in a Windows-based system.