Our new USBS 221 converter provides your PC with an asynchronous serial port
directly from an existing USB port. It's especially handy for common RS-232
devices such as modems, mice, and plotters. With our USBS 221 you don't have to
open the computer case, use scarce COM: ports, or fuss with IRQs. You do
need a PC system that supports USB both in terms of hardware and operating
Each USBS 221 converter includes a FIFO buffer with 384 bytes in and 128 bytes
out. The converter includes a 36" cable and supports Windows® 98SE/2000/XP.