8-Port RS-232 PCI Express Serial Board with Oxford Chip
Bus interface: 3.3v PCI Express Bus signal support
I/O Address & IRQ: Assigned by BIOS. Plug & Play.
Works in PCI Express x1, x4, x8, x16 slots
OS Compatibility:Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, 8, and 10 as well as Linux and Mac OS 10.X