Key benefits Control up to four computers with one keyboard, one mouse, and one monitor, reducing desk clutter and simplifying daily workflow. Share four USB peripheral devices across all connected PCs without unplugging or swapping cables (examples include scanners, USB drives, and other USB peripherals). Plugandplay design requires no software or drivers, making setup quick and straightforward. Durable aluminum alloy shell provides robust construction and helps dissipate heat to extend the life of the switch. What it solves Eliminates the need to maintain separate input devices and cables for each computer. Enables fast switching between hosts while keeping USB peripherals accessible to all connected systems. Main features Four PC control with a single keyboard, mouse, and monitor Four USB device ports for easy sharing of peripherals Plugandplay, no software required Aluminum alloy housing for durability and improved heat management Practical use scenarios Office workstation: Manage four desktop or laptop PCs from a single keyboard and mouse, using one monitor to streamline multidevice productivity. Studio or lab environment: Share a scanner, USB hard drive, or other USB devices among multiple computers without repeatedly reconnecting devices. IT maintenance and testing: Quickly switch between test machines during software deployment, troubleshooting, or hardware evaluations without reconfiguring equipment. Specifications and attributes (as described) PC support: Up to four computers controlled with one input set USB peripheral sharing: Four USB ports available for sharing devices Input devices: Keyboard, mouse, and monitor shared across PCs Construction: Aluminum alloy shell Installation: Plugandplay, no applications or drivers required This description preserves the original product intent and functions, presenting clear benefits, practical uses, and essential attributes in customerfriendly language.