StarTech.com Serial adapter card - PCI Express - serial - 4 ports

The PEX4S952 4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART allows you to turn a PCI Express slot into 4 RS-232 (DB9) serial connections.
The four port serial card is based on a native single chip design, that harnesses the full capability of PCI Express (PCIe) - providing optimum reliability and speed, and reducing the load applied to the CPU by as much as 48% over conventional serial cards.

Offering compatibility with a broad range of operating systems including Windows®, Linux and Mac® OS for easy integration into mixed environments. Plus, an included optional low profile/half-height bracket that allows the card to be installed in virtually any computer case - making it that much easier to add serial ports to your PCI Express enabled computer, regardless of the case form factor.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

• Four high speed RS-232 serial ports with data transfer rate up to 460.8 Kbps
• Includes low profile/half height mounting bracket
• 128-byte deep FIFO per transmitter and receiver
• High Performance Oxford 16950 UART
• Native single-chip, single lane PCI Express
• Compliant with PCI Express base specifications revision 1.0a