Digitus DS-33003 Internal Serial interface cards/adapter

2-Port Serial PCI Card Perfect for connecting serial modems, PDAs, digital cameras, printers, ISDN terminal adapters and many more

Serial I/O, 2-Port, PCI Add-On Card, 2 X DB9 M, Slot Bracket MCS9865 chipset

This PCI based serial Add-On card allows you to turn a PCI slot into two RS232 (DB9) serial ports. Based on a native single chip design reduces the load applied to the CPU by as much as 48% over conventional serial cards.