The US221A is a 2-port USB 2.0 Peripheral Switch that allows up to 2 computers to share the use of a single USB peripheral device (such as a printer, scanner, mass storage drive, etc. ) on a one-at-a-time basis.
1x 2-Port USB 2.0 Peripheral Switch
1x USB Type-A to USB Type-B Cable (1.8m)
1x User Instructions