1.PCI-Express 4-Port RS-232 Serial Card 2.Moschip 9904 Chipset 4-port Serial PCI-Express Controller Card (RS232, DB9)PicturePicture PCI Express ... ControlSupports Hardware, Software flow control5, 6, 7, 8 and 9-bit Serial format SupportEven, Odd, None, Space & Mark parity supportedCustom BAUD ... 32bit 2000/XP/2003 Sever/Vista and 64bit XP/2003 Server/Vista/7Linux Kernel 2.6.11 & aboveMac 10.4 & ...