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PCI Expander 4S Upgrade Kit - Expansion module - RS-232 - serial - 2 ports
PCI Expander 4S is a two-UART 16550 serial I/O card upgradeable to 4 serial ports. This solution is ideal for high-speed serial port devices including 56K V.90 external modems. The device improves I/O access speed up to 8 times faster than ISA serial ports and the PCI IRQ sharing eliminates IRQ conflicts.
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