4 Port PCI Express Serial Card

4 Port RS232 PCI Express Serial Card w/ Breakout Cable

By StarTech.com

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Description & Features+

The PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot, with an included 1-to-4 cable enabling you to add 4 serial ports to a single low profile slot. The 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 multi-port serial adapter includes both full profile 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®, Linux, and MAC OS. This product is a replacement for our PEX4S552B card. Backed by a StarTech.com lifetime warranty and free lifetime technical support.

Lower CPU load of native single-chip, single lane PCI Express design ensures optimal system performance (up to 48% less CPU load)Includes both standard and low profile/half-height brackets, which makes this the perfect card for any application, including small form factor embedded applicationsBreakout cable design means that only one expansion slot is needed, to add 4 additional serial ports to any system

Product Label Contents:

4 Port PCI-Express Serial Card
Breakout cable
Full profile bracket
Driver CD
Instruction Manual
Native single chip designIncludes a full profile and low profile/half-height bracketOn chip 256-byte depth FIFO in transmit/receive path of each portSingle-Lane (x1) PCI-Express with throughput up to 2.5GbpsSupports hardware and software flow controlSupports re-map function for legacy ports (Supported OS's only)Supports data transfer rates up to 250Kbps on each portCompliant with PCI Express base specifications revision 1.0aAutomated out-of-band flow control using CTS/RTS and DSR/DTR


Supplier Warranty
Lifetime Warranty
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