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StarTech.com 4 Port PCI RS232 Serial Adapter Card with 16550 UART (PCI4S550)
Serial ports are on the included dongle cable so only a single slot is occupied in the system case making it ideal for space sensitive installations
Broad operating system compatibility with support for Windows or Linux makes this card perfect for installation into mixed environments
Easy plug and play installation fits any standard profile PCI slot
Includes 4-port RS232 breakout cable
IRQ sharing
16 byte FIFO buffer ensures fast data transfers while multitasking