Brand New- The Single port PCI 16C550 PCI Serial I/O Card by Startech.com is a vintage interface card compatible with universal brands. This card provides a single serial port and is designed to be installed into a PCI slot on a computer, offering a reliable and efficient solution for connecting serial devices. Perfect for those looking to expand the capabilities of their vintage computer system, this PCI serial I/O card is a dependable choice for enhancing connectivity options.