Use this High performance Lava card to add a serial port to your computer. This card requires one free PCI slot.
Features
Capable of handling data throughput rates up to 115.2kbps.
Automatically configures itself for an available conventional I/O address and IRQ's.
Adds four additional COM ports to your PCI equipped PC.
Saves resources by all four ports sharing one available PCI IRQ.
Includes Lava Com Port Redirect Utility, allowing backward compatibility with software that supports COM 1-4 only.
Fully complaint with PCI 2.1 specifications.
Specifications
PCI connection. 4 DB9 serial ports. 115.2kbps Maximum transfer rate on each port. RS-232C interface. Plug and play. Compatible with 16c550 UARTs. CSA, FCC, and CE mark compliant. PCI 2.1 Specifications.
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I use this single parallel I/O port card to a serial and parallel port on my computer this requires one free PCI slot this are more fast compare to others .It is so good and highly recommended by me.