I vaguely remember there being some proprietary connectors that were the same as... | Hacker News

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dec0dedab0de on July 25, 2025 | parent | context | favorite | on: It's a DE9, not a DB9 (but we know what you mean)

I vaguely remember there being some proprietary connectors that were the same as the standard with a single pin missing.

dlcarrier on July 27, 2025 | [–]

You might be thinking of VGA connectors, which were a DE-15 connector, similar to a DE-9 serial cable, but with an extra row of pins and often pin 9 missing.

dfox on July 25, 2025 | [–]

IBM did that pretty often. And well, the original VGA connector had pin 9 missing and used as a key.

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