SYBA IO CREST 4-port, RS-232 Serial, PCIe x1, Revision 2.0, (Full & Low Profile); Exar Chipset Model SI-PEX15042 Operating Systems Supported: Windows 8 Windows 7 XP Vista Windows Server 2003/2008/2012 Linux 2.6.27, 2.6.31, 2.6.32, 3.x.x and newer Weight: 1.01 Package Contents: 1 x 4-port PCIe Serial Card 1 x 4-port Serial Octopus Cable 4 x Serial Adapters 1 x User Manual 1 x Driver CD 1 x Low Profile Bracket
