The PEX1S553LP PCI Express serial card turns a PCI Express slot into an RS232 (DB9) serial connection. The card is constructed using a native single chip design that lets you harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge chip serial cards. The PCI Express RS232 serial adapter card is compatible with a broad range of operating systems, including Windows 2000/XP/2003/ Vista / Windows 7/ Server 2008 R2 (32 & 64 bit), Linux Kernel 2.6.11 & up, & ships with a low profile/half-height bracket installed, but
Includes:: an optional full profile bracket that lets you add a serial port to virtually any computer (regardless of the case form factor). This product is a replacement for the PEX1S552LP card.