10BASE2 coax ethernet cable
Apple’s coax cable for 10BASE2 ethernet or thinnet networking.
This Apple 10BASE2 6 foot coaxial cable plugs into the Apple Ethernet Thin Coax Transceiver, M0329. If this coaxial cable is used, no BNC T-connectors or terminators are required. The transceiver will automatically terminate the network if a cable is not attached to one side. This coaxial cable will also terminate the network if no device is attached.
Apple part number is 590-0540-A