4 Port KM USB Switch with Mouse Roaming - 

P4A20132-KM-SWITCH is a keyboard and mouse (KM) switch that enables switching a single keyboard and mouse between multiple computers using mouse roaming, allowing users to seamlessly move the cursor across multiple screens (i.e., one monitor per computer). The hotkey and push-button switching are universally compatible. The mouse switching is supported by most major desktop operating systems, including Windows, macOS, and Linux. To accommodate various physical monitor setups, there are four preset display configurations available. This allows for smooth mouse movement across host monitors. The hotkeys enable listening to audio from one computer while controlling another. The USB audio and 3.5mm pass-through are available, and LEDs provide visual port selection status, while an audible buzzer confirms hotkey selection. This product is backed for 2-years and by free lifetime 24/5 multi-lingual technical assistance.