ATEN US421A 4-poorts USB 2.0 perifere switch USB and printer switch

The US421A is a 2-port USB 2.0 peripheral switch that allows 4 computers to share time-shifted access to a single USB peripheral (e.g., printer, scanner, mass storage device, etc.).... Provides up to four computers with access to a single USB peripheral. Easy port selection via push buttons, configuration program or automatic port switching. Automatic switching - no print server required. Meets USB 2.0 specifications. Supports data transfer rates up to 480 Mbps. Multi-platform compatible - Windows and Macintosh. LED displays signal the currently selected port. Overload protection. Bus power supply. Hot pluggable feature. Beep when switching between computers. Supports multifunction printers. PC selection via push buttons, software or automatically.