3Com 3c5x9 is a line of Ethernet IEEE 802.3 network cards produced by 3Com, put on the market in 1994, and were a staple in the evolution of networking technology for the years to come. If you can get hold of one of these adapters and install it in an old computer you can still today connect to the Internet.
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3Com EtherLink III MC (3C529) Coax/AUI
3Com EtherLink III MC (3C529) Twisted-Pair/AUI
3Com EtherLink III ISA (3C509/3C509b) in ISA mode
3Com EtherLink III ISA (3C509b-TP) in PnP mode
3Com EtherLink III ISA (3C509b) in PnP mode
3Com EtherLink III ISA (3C509b-Combo) in PnP mode
3Com EtherLink III ISA (3C509b-TPO) in PnP mode
3Com EtherLink III ISA (3C509b-TPC) in PnP mode
3Com EtherLink III ISA (3C509-TP) in EISA mode
3Com EtherLink III ISA (3C509) in EISA mode
3Com EtherLink III ISA (3C509-Combo) in EISA mode
3Com EtherLink III ISA (3C509-TPO) in EISA mode
3Com EtherLink III ISA (3C509-TPC) in EISA mode
3Com EtherLink III EISA (3C579-TP)
3Com EtherLink III EISA (3C579)
EtherLink III (3C509b) compatible in PnP mode
Combinations for Etherlink III Adapter number Bus Network Connnector 3C509-TPO ISA 10BASE-T 8P8C 3C509B-TPO ISA 10BASE-T 8P8C 3C509-TP ISA 10BASE-T, AUI 8P8C, DA-15 3C509B-TP ISA 10BASE-T, AUI 8P8C, DA-15 3C509-Coax ISA AUI, 10BASE2 DA-15, BNC 3C509B-Coax ISA AUI, 10BASE2 DA-15, BNC 3C509-Combo ISA 10BASE-T, AUI, 10BASE2 8P8C, DA-15, BNC 3C509B-Combo ISA 10BASE-T, AUI, 10BASE2 8P8C, DA-15, BNC 3C579 EISA AUI, 10BASE2 DA-15, BNC 3C579-TP EISA 10BASE-T, AUI 8P8C, DA-15 3C529 MCA AUI, 10BASE2 DA-15, BNC 3C529-TP MCA 10BASE-T, AUI 8P8C, DA-15 3C589-TP PCMCIA 10BASE-T 8P8C 3C589B-TP PCMCIA 10BASE-T 8P8C 3C589-Combo PCMCIA 10BASE-T, 10BASE2 8P8C, BNC 3C589B-Combo PCMCIA 10BASE-T, 10BASE2 8P8C, BNC
