MasterConsole MX4 is a full-featured, multi-platform, multi-user KVM (keyboard, video, and mouse) switch with models to enable each of four simultaneous users to access and operate any one of 8, 16, or 32 computers. You can expand to control up to 1,024 computers by cascading MX4 units.The advanced on-screen user interface with multi-level security makes operation with the MX4 simple and secure. Raritan's unique emulation technology, which dedicates an individual, intelligent processor to each channel, means smooth, flawless bootup and operation to any mix of computers running the most demanding operating systems. Just connect computers, plug in one to four user consoles (keyboard, monitor, and mouse), and operate.