Free Shipping Included! Save 1% on the StarTech.com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCIe Breakout Cable - RS232 Extension (PEX4S553B) by StarTech at Orion Web. MPN: PEX4S553B. Hurry! Limited time offer. Offer valid only while supplies last. 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.
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