The EC1S952 1 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART lets you add an RS232 serial port to your laptop or ExpressCard-equipped desktop computer. The serial ExpressCard is designed based on a single-chip architecture (as opposed to cards that use a 'bridge chip'), providing native PCI Express communication for greater performance and reliability by reducing the CPU load by up to 48%, and lowering power consumption. An included stabilizer bracket allows the EC1S952 to fit snugly in both 34mm and 54mm ExpressCard slots. Providing optimal communication with RS232 serial devices, this ExpressCard serial card supports baud rates of up to 115.2Kbps and features a 128-byte FIFO buffer, plus a high performance 16C950 UART.

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

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The PCI2S550 2 Port 16550 Serial Card can be installed in an available PCI slot to add two RS232 serial ports to your system. A cost-effective solution for connecting any new or legacy serial device, with data transfer rates of up to 115.2 Kbps.

Perfect for connecting serial modems, POS devices, PDAs, digital cameras, printers, ISDN terminal adapters and more to your system, the adapter card supports IRQ sharing and operates flawlessly with Windows® 7, Server 2008 R2, XP, Server 2003, 2000, ME, 98, 95, NT4, 3.1, DOS® and Linux®. The card can be connected in minutes through simple plug and play installation and is backed by a StarTech.com lifetime warranty and free lifetime technical support.