Gemini III Db25 2 Way Manual Data Switch Box Parallel Serial D-sub 25 Pin Fem

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LC&D Chelsea Digital Switch 2-Button White

Lot of 2 Data Transfer Switch AB & ABCD

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Model LSC-227-1 Data-Myte Foot Pedal 2 Wire Contact Closure Normally Open.

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Vintage RMI 2 (2 Way Manual Data Switch Box)