Product Description 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - PCIe Serial Card (PEX4S553B) - serial adapter - PCIe - RS-232 x 4 Device Type Serial adapter Form Factor Plug-in card Interface (Bus) Type PCI Express Ports RS-232 x 4 Dimensions (WxDxH) 2 cm x 7 cm x 6.2 cm Weight 226 g Data Link Protocol RS-232 Data Transfer Rate 250 Kbps Processor MCS9901 System Requirements Microsoft DOS, Microsoft Windows 2000, Microsoft Windows 95/98 Second Edition, Microsoft Windows XP, Microsoft Windows XP Embedded, Microsoft Windows Server 2003, Microsoft Windows Embedded Standard 2009, Microsoft Windows CE 5.0, Microsoft Windows Embedded POSReady 2009, Microsoft Windows Server 2008 R2, Microsoft Windows CE 6.0, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Apple MacOS X 10.4 - 10.10, Microsoft Windows Vista / 7 / 8 / 8.1 / 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Linux 3.5.x - 4.11.x LTS versions only Manufacturer Warranty Limited lifetime warranty This product is a replacement for the PEX4S552B card. The multi-port serial adapter includes both full profile/height 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. The serial adapter 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 PCIe Serial Card includes a 1-to-4 break out cable, which enables you to add 4 serial ports to a single low profile slot.
The PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot.
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