Black Box - serial adapter

When you need to add one, two, four, or eight serial PCI ports to your personal computer, select a PCI card from Black Box. All of it cards feature 16850 buffered UARTs for speeds up to 460.8 kbps. The cards are designed to maximize DOS, Linux, OS/2, QNX, Windows 3.1x/95/98/2000/Me/XP, Windows NT, and UNIX communications. Windows drivers, utilities, INF files, and help files are included to simplify installation.

The IC978C gives you eight field-selectable RS-232/422/485 serial ports. It functions in the same way as the IC974C, but it connects up to 248 RS-485 devices to your PC.