4-port manual parallel data transfer switch (cross-over type) Retro Computing

Vintage new old stock Parallel Data transfer switch

Vintage Computer Data Transfer Switch A-B 2 Channel

VINTAGE IBM 6135932-01 Computer Serial/Parallel Board Card 6448800APS

Vintage DB25 A/B/C/D Parallel Serial Manual Data Switch Box

Computer Printer 25 Pin Parallel Port Data Transfer A/B Switch Used Untested

Vintage Belkin Components Data Switch F1B024-E A/B Parallel Serial Printer

Vintage Radio Shack Parallel Port Data Switch Box Manual Selector DB25