NCR 7458 - Manual (Page 69)

Chapter 3: Hardware Service 3-45
4-Port PCI RS-232 Expansion Card (3212-K170)
The SIIG Full Profile PCI-4S RS-232 Board provides four additional
RS-232 ports. The board requires one unique IRQ and four eight-byte
I/O addresses which are automatically assigned by the PCI BIOS. It
can operate in a DOS/Windows 3.1x, Windows 95/98/98 SE/NT4.0/
2000 or Windows XP environment. The board uses a 4-Port RS-232
cable to connect to peripheral devices. See the 4-Port PCI RS-232
Expansion Card (3212-K170) for installation information.
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