SYBA 2 DB-9 Serial (RS-232, COM) Ports PCI Controller Card, Netmos 9865 Chipset Model SY-PCI15004 Type: PCI to Serial Port Card External Ports: 2 x Serial Ports Operating Systems Supported: Windows 7 Vista Windows XP Windows 98SE Windows ME Windows 95 Windows 2000 Windows NT 4.0 Linux DOS Dimensions: 6.5 x 5.5 x 1.5 in Weight: 0.35 Package Contents: 2-port PCI Serial Controller Card Driver CD User Manual