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Vintage 2 Way Manual Data Transfer Switch Box AB 25pin Input Output Connections

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Vintage 2-Port Data Transfer Switch A/B 25-Pin Serial Parallel Cable Ports

DB25 Serial Cable RS-232 Male To Male 25 Pin Vintage Computer Data Cord

Vintage 1993 Curtis Manufacturing 25 Pin Serial Data Switch A/B Switcher

Vintage 2-Port Data Transfer Switch A/B 25-Pin Serial Parallel Cable Ports