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The Rosewill RC-305E PCI Express Card turns a PCI Express slot into four serial ports (two external ports and two headers on the card). The card features a built-in 16C450/550 compatible UART offering a convenient solution for connecting serial devices with data transfer rates of up to 230400bps.


Model RC-305E
Type PCI Express to Serial Port Card
External Ports 4 x Serial Port
Data Rates Up to 230400bps
Operating Systems Supported Windows 2000/XP/Server 2003/Vista/7/8
Package Contents 1 x PCIe Serial Card 4 Port 
1 x Bracket with two DB9 male serial ports 
1 x Driver CD 
1 x User Manual
Warranty 1 Year