This?PCI Express RS232 serial adapter card?lets you add four RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot,?as if they were native serial ports. The?4 port?PCIe serial?card?enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.6Kbps.?

Maximum Compatibility?
With broad OS support, including for Windows and Linux, this?multiport?PCI E serial card?is easy to integrate into mixed environments. The card comes pre-configured with a full-sized bracket, and includes an optional low-profile bracket, so installation is easy regardless of the case form factor. This expansion card is a direct?replacement for?PEX4S952.??

PEX4S953?is backed by a StarTech.com lifetime warranty and free lifetime technical support.?