The XR17V358 series Multi-I/O PCI-Express controller cards are the high performance RS-232 serial interface controller for home and industrial users. They are compatible with industrial standard 16C550 UART, which provide a low cost connection platform for industrial machines, POS machines, external modems, mice, etc.Host Interface: PCI Express 2.0 x1Data Transfer Rate: Up to 25 MbpsPorts Expandability: 8 x 9-pin DB-9 Male RS-232 - Serial, Via CableForm Factor: Plug-in CardPackage Contents: PCI-Express Serial Card 1 x 8-port DB9 Fan-out Cable 1 x User Manual 1 x Driver CD Limited Warranty: 1 YearPackage Contents PCI-Express Serial Card 1 x 8-port DB9 Fan-out Cable 1 x User Manual 1 x Driver CD