Hot swappable design lets you plug or unplug a connected computer without powering down the KVM switch or the computer. Compact 4 port manual KVM switch with mini pocket design; lightweight and easy to use on a desk or in a small workspace. USB 2.0 port supports smart mouse, network mouse, and other USB input devices. Compatibility covers a wide range of operating systems and platforms: DOS, Win3.X, Win95 / 98 / 98SE / 2000 / ME / XP, WinNT, Netware, Unix, Linux. Key benefits and use scenarios Space saving and simple operation Share a single keyboard and mouse across up to four computers with manual switching Reduces desk clutter and makes multisystem control straightforward Flexible IT management and maintenance Ideal for server rooms, test benches, or IT workstations where quick switching between systems is needed without rebooting versatile home lab and development Supports a broad OS range, enabling cross OS testing and learning in a compact setup Use scenarios Desktop office or home workstation Manage four PCs from one keyboard and mouse, switching between systems with the manual selector for efficient multitasking IT maintenance and server management Quickly switch control between servers or test machines during setup, deployment, or troubleshooting without powering down devices Software testing and development lab Run multiple operating environments on separate machines and alternate between them for compatibility checks and experiments This device maintains a consistent, professional performance for multi computer control while prioritizing a compact, portable form factor.