Your source for the most up-to-date terms, definitions, and acronyms for and about internet service providers.
Search for an ISP term
AUI
Last modified: Monday, September 01, 1997
Short for Attachment Unit Interface, the portion of the Ethernet standard that specifies how a cable is to be connected to an Ethernet card. AUI specifies a coaxial cable connected to a transceiver that plugs into a 15-pin socket on the network interface card (NIC).