Not as rare as the handful of PCI ethernet cards I have with a RJ45 and a DB9 connector. 100BASE-CX, ethernet over STP, used for a very brief period of time so people could reuse their Token Ring wiring plant for Ethernet.
DB9. As I said, it's so customers with a wiring plant based on Token Ring STP (aka Type 1) could use ethernet at the end points without running new wiring.
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Not as rare as the handful of PCI ethernet cards I have with a RJ45 and a DB9 connector. 100BASE-CX, ethernet over STP, used for a very brief period of time so people could reuse their Token Ring wiring plant for Ethernet.
Is it DB9, or AUI? (AUI is 15-pin, and is the card required for this story)
DB9. As I said, it's so customers with a wiring plant based on Token Ring STP (aka Type 1) could use ethernet at the end points without running new wiring.