StarTech.com 8 Port PCI Express Low Profile Serial Adapter Card - RS-232 Type: PCI Express to Serial Port Card External Ports: 8 x Serial Ports Data Transfer Rate: 921.6 Kbps Operating Systems Supported: Windows 2000/2003 Server and 2003 Server 64- bit/XP and XP 64-bit/Vista and Vista 64-bit ; Linux Weight: 1.65 Package Contents: PCI Express Low Profile 16C950 Serial Card 2 x DB44 to DB9 (4 port on each cable) Parts: 1 year limited Labor: 1 year limited