Key benefits No external power supply required The device operates without an additional power adapter. It works through the printer connection so no extra power supply is needed. Durable black ABS housing Built with a sturdy ABS case that resists drops and wear, suitable for everyday office use. Two computers share a single printer Switch between two PCs without plugging and unplugging cables, helping protect equipment and reduce office costs. Broad compatibility and efficiency Designed to work with a variety of devices; two computers can share USB devices to improve office workflow and productivity. Use scenarios Small office or home office with one printer A desktop and a laptop share a single printer, reducing cable clutter and printer port wear while cutting printing expenses. Shared workstations or classrooms Two users alternate printing tasks without disconnecting cables, simplifying collaboration in shared spaces. Quick USB device sharing Two computers can access common USB devices to complete tasks more efficiently without swapping connections.