RDH2159 PCI serial and parallel transfer driver support vista, xp, 2000,98 system is not currently able to support win7, there are detailed installation instructions, personally tested to install and use.

RDH2159芯片串并口驱动\PCI-串口，并口。Driver\vista-Xp-2000-2003\MT68XDRV.inf
.....................\......................\..................\MTPORTS.INF
.....................\......................\Win98_ME\Mt98Mf.inf
.....................\......................\........\PORTS.INF
.....................\......................\驱动安装说明.xls
.....................\......................\vista-Xp-2000-2003
.....................\......................\Win98_ME
.....................\PCI-串口，并口。Driver
RDH2159芯片串并口驱动

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