Settable to COM1-COM99.

Provides 8 DB9 (9-pin male) serial connectors via an included cable & COM-BOX that plugs on to the back of the card.

Uses only 1 IRQ and can share an interrupt with other plug & play devices in your system.

Designed for use with Windows 95, 98, ME, 2000, XP, Vista, 7, 8, 10, NT 4.0, DOS, Linux kernel 2.0.xx and later & OS/2.

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We stand behind our product If you need any assistance, you can call us toll-free for the life of the product for free assistance at 1-800-274-7897 (USA & Canada only), or +1-865-988-7906 for those in other areas.

Product comes with a 1 year warranty, and a 30-day money back guarantee with no restocking fee.