Two computers can share four USB devices with a single USB switch selector, eliminating constant cable swapping and the need for software based sharing. - Shared devices: Connect up to four USB devices and share them between two computers, such as printers, scanners, mice, keyboards, card readers, flash drives, and other USB peripherals. - Compatibility and setup: Works with Windows 10/8/8.1/7/Vista/XP, MacOS, and Linux. No driver required; plug and play. - Operation and indicators: Switch between the two computers with the push of a button. LED indicators show which computer is currently active. - Use scenarios: - Home office or small business: share a printer and scanner between a desktop and a laptop. - Peripheral sharing: use a single keyboard, mouse, and USB flash drive across two PCs. - IT testing and cross platform work: quickly switch peripherals between systems without reconnecting cables.