FIELD GUIDESource-led reference
Port & Cable

Comparison topic

Legacy computer connector comparisons

Legacy computer, ribbon, D-sub and FireWire connector distinctions.

7curated comparisons
16referenced records
FireWire: 4-pin, 6-pin and 9-pinCompare the end forms; document power and software support independently.FireWire 4-pin connector · FireWire 6-pin connector · FireWire 9-pin connectorPS/2 form versus S-Video formCompare the contact pattern and keying, not only a circular shell.6-pin Mini-DIN (PS/2 form) · 4-pin Mini-DIN (S-Video form)DE-9 versus DB25Find the exact documented interface before choosing a cable.DE-9 D-sub (commonly called DB9) · DB25 D-sub connector34-, 40- and 50-position IDC ribbon headersWhich 2.54 mm two-row position count and keying does the exact header use? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.34-position 2.54 mm IDC ribbon receptacle · 40-position 2.54 mm IDC ribbon header · 50-position 2.54 mm IDC ribbon headerMDR 36 versus 50 versus 68Which Mini Delta Ribbon position count and series does the exact component specify? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.36-contact MDR / IEEE 1284C form · 50-position Mini Delta Ribbon (MDR) connector · 68-position Mini Delta Ribbon (MDR) connector68-position MDR versus 68-contact VHDCIIs the 68-contact legacy interface MDR or the narrower VHDCI family? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.68-position Mini Delta Ribbon (MDR) connector · 68-contact VHDCI SCSI connectorCHAMP 36 versus CHAMP 50Is the full-size CHAMP/Centronics-style connector the 36-position or 50-position form? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.Centronics / CHAMP 36-position connector · CHAMP 50-position connector

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Discovery is not a compatibility verdict.

These discovery surfaces route and reorganize facts already represented in the atlas. They do not add electrical ratings, universal pinouts, measured tolerances, exact-device support, wiring approval or an end-to-end compatibility result.