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The PEX2S553B 2-Port PCI Express Serial Card w/ Breakout Cable lets you add two RS232 serial ports using a single PCIe expansion slot. With the included break-out cable, you can easily add two ports to a single low profile slot.
The PCIe serial card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe enabled computers.
The multiport PCIe Serial Adapter includes both full and low-profile/half-height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows 7/Server 2008 R2, 2003/Vista/XP (32 and 64 bit), Linux Kernel 2.6.11 and up, as well as MAC OS 10.5 and above.
2-Port PCI Express Serial Card This 2-Port PCI Express Serial Card features a breakout cable design that uses one expansion slot to add 2 serial ports to any system, supporting data transfer rates up to 250Kbps on each port. Included standard and low profile/half-height brackets make this the perfect card for any application including small form factor embedded applications.
Native Single Chip Design Lower CPU load of native single-chip, single lane PCI Express design ensures optimal system performance (up to 48% less CPU load).
Support Hardware and Software Flow Control This 2-Port PCI Express Serial Card supports automated out-of-band flow control using CTS/RTS and DSR/DTR.
This review is from: StarTech 2 Port RS232 PCI Express Serial Card w/ Breakout Cable Model PEX2S553B
Pros: works as advertised; using with a USR serial RS232 modem
Cons: none that I can find at this time
Other Thoughts: recommended and would buy again
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