Manual Serial Data Transfer Switch Box Plex Technologies 3 Way RS-232 *Untested*

Apollo 060-7888 SmartSwitch RS-232 Serial 4-Port Switch BROKEN PORT SELECTOR

Inmac Clear Signal Serial Smart Switch 8-Port to 1-Port Printer Switch

VINTAGE PRIMAX PRINTERLINK LE110 PARALLEL PORT EXTENDER SET W/ 52 FT CABLE

DB25 4 Way Data Transfer Switch Box Parallel Port Rotary PC Printer

Kentek DB9 Male Manual Data Switch 4 Way Rotary Dail Type RS-232 Serial Printer

Lot of 2 TP-401B PARALLEL AUTO SWITCH /No POWER ADAPTER

Kentek DB9 Female Manual Data Switch 4 Way Rotary Dail Type RS232 Serial Printer