The intel x540 family of products works with existing networks today it works with legacy gigabit ethernet gbe switches and cat 6a cabling install the intel x540 adapter into a server and the auto negotiation between 1gbe and 10gbe provides the necessary backwards compatibility that most customers require for a smooth transition and easy migration to 10gbe when time and budget allows 10gbase t switches can be added any time to experience the full benefits of 10gbe the intel ethernet co