This is a vintage Digital Equipment Corporation LAN Bridge 624. It comes with two network cards, one 3-port Ethernet AUI card, and one two-port modular FDDI fiber optic card, with one long-haul and a short-haul fiber connector. Can be configured as DAS or SAS.This is a piece of Ethernet and FDDI networking history for connecting a 10 megabit building to a campus 100 Meg FDDI ring network.This is used, untested and is sold as-is. We do not have an AUI or FDDI network to test it.We do not accept returns.We ship only within the united states.Happy offerding.