Add 4 high-speed RS-232 serial ports to your PC through a PCI Express expansion slot. The PEX4S552 4-port PCI Express-based serial adapter card lets you turn a PCI Express slot into 4 RS-232 (DB9) serial connections.
The adapter card is based on a native single chip design that allows you to harness the full capability of PCI Express (PCIe) - providing optimum reliability and speed while reducing the CPU load by as much as 48% over conventional serial cards.
The RS-232 Serial Adapter Card is compatible with a broad range of operating systems, including Windows 7/Vista/XP/2000/ Server 2003/Server 2008 R2 (32 / 64 bit), Linux Kernel 2.6.11+, and MAC OS 10.4+.
The PEX4S552 card also includes a low profile/half-height bracket that allows the card to be installed in virtually any system - making it easier to add serial ports to a PCI Express enabled computer, regardless of the size of the computer case.
Backed by a StarTech.com Lifetime warranty and free lifetime technical support.