Comtrol Hostess 550

Comtrol Hostess 550 ... 16550 or 16554 UARTs provide data buffering that reduces the number of system interrupts and increases system throughput. It is hard to find a more economical or simple way to enhance multiuser system performance.

Using a single expansion slot, Hostess 550/554 series controllers can connect four, eight, or sixteen asynchronous serial devices such as terminals and printers. Like all Comtrol products, the Hostess 550/554 gives you the freedom of choice and the flexibility to grow. Upgrade modules allow growth from four to eight ports. To increase users beyond eight, try 16-port controller. And when you need more than 16 users, add up to four controllers in your PC. Hostess 550/554 controllers are available for ISA compatible systems.