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I/O Crest 2 Port Serial COM DB9 RS-232 and 1 Port DB25 Printer Lpt1 Port PCI-E 1.0 X1 Card WCH382 ChipsetThe IOCrest SI-PEX50054 2 port DB9 serial and 1 port DB25 parallel PCI-E 1.0 X1 controller card turns a single PCI-Express X1 slot into two RS-232 serial ports and one EPP/ECP parallel port. Suitable for installation in a small form factor compu..