Durable black ABS case Sturdy, drop and wearresistant housing that protects the internal components. Intelligent control and performance Uses an intelligent control chip with a performance main controller for smooth switching, stable operation, and broad compatibility. This combination helps improve work efficiency. Wide compatibility and device sharing Suitable for a variety of USB devices; enables two computers to share USB peripherals to streamline office workflows. No external power supply required Does not need an external power source; supports operation via its printing port without additional power. Use scenarios DualPC setup: easily switch a USB printer and other peripherals between two computers without reconnecting cables. Small office or home office: share keyboards, mice, printers, USB drives, and other devices between two PCs to reduce desk clutter and simplify setups. Flexible home workstation: connect a desktop and a laptop and access the same USB devices from either machine for increased productivity.