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2-Port ISA Serial/Parallel Expansion Card

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$34 USD
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2-Port Expansion Card (ISA RS232 Serial and Parallel Port), 5V Adapter Card ISA COM1 COM2 LPT Card PC Adapter

Retro ISA interface card with 2 RS232 ports (COM1/COM2) and a 5V powered PCI-like adapter. Works in vintage systems with ISA slots; supports DB15 and pin header COM2. Customer says it works with printers

Highlights

  • two RS232 ports
  • DB15 and pin header interfaces
  • requires only 5V power

Pros

  • Two RS232 serial ports
  • DB15 and pin header COM2 interfaces
  • 5V power supply requirement
  • Broad ISA compatibility
  • Printer compatibility

Cons

  • Limited to ISA-slot systems
  • Only 5V power supplied
  • based on customer note: single reviewer

Best For

  • retro PC/hobbyist builds
  • RS232 printer connection
  • legacy equipment maintenance
  • COM1/COM2 expansion for old machines
  • industrial equipment debugging
  • serial console access

Features

  • ISA interface card with 2 RS232 serial ports (COM1 DB15, COM2 pin header)
  • Compatible with 8086-586 era CPUs and newer Celeron machines with ISA slot
  • Powered from a single 5V supply for the board operation
  • Supports connection to printers, scanners, plotters, POS terminals, PLCs

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