US-421 4 Port USB 2.0 Peripheral Switch US-421 allows 4 computers to share the same USB peripheral under the foundation of one-at-a-time. Users can switch the computer controlling the peripheral from the simple hotkeys or buttons on the front panel or the control software on Windows. It is ideal for SOHO environments. Features Enables four computers to share a single USB peripheral device. USB 2.0 compatible. Hotkey, front panel pushbutton and Windows AP for simple port selection. Supports transfer rates of 1.5, 12 and 480 Mbps. Hot pluggable - USB devices can be attached and removed .without resetting the system. LED indicators display port focus. Overcurrent protection. Beep indicates PC change and busy status. Bus powered. Plug and play. OS Compatibility: Mac、WIN98、WIN ME、WIN 2K、WIN 2003 and WIN XP. Package Content 1x USB Peripheral Switch 1x USB Cable 1x Driver Disk 1x User Manual Specification Console Connection 4 PC Selection Hotkey / Panel / AP (Windows only) Connectors Computer Side 4 x USB Type B Device Side 1 x USB Type A LEDs Devices 1 x Orange Select 4 x Green Housing Plastic Power Supply Bus powered