User manual

- 4 -
Overview
The US-221 / US-421 is a two (US-221) / four (US-421) port USB
2.0 Switch that allows up to two / four computers to share the use
of a single USB peripheral device (such as a printer, scanner,
modem, etc.) on a one-at-a-time basis.
The peripheral focus can be given to a computer manually, with
hotkeys, or a Windows
®
based program.