StarTechcom SERIAL CARD WBREAKO 4 PORT RS232 PCI EXPRESS SERIAL CARD

The PEX4S553B 4 Port PCI Express Serial Card with breakout cable lets you add 4 RS232 serial ports using a single PCIe expansion slot. 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 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 multi port serial adapter includes both full profileheight and low profilehalf height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows 7Server 2008 R2, 2003VistaXP 32 and 64 bit, Linux Kernel 2.6.11 and up, as well as MAC OS 10.5 and above. This product is a replacement for the PEX4S552B card.