Two computers share a single printer, eliminating the need to plug and unplug cables when switching print jobs. This helps protect equipment and reduces office costs. No external power supply required. The device operates via the printer USB port and can be used normally without an additional power source. Durable black ABS enclosure. Designed to withstand daily use and resist drops and wear. Broad compatibility. Suitable for a variety of USB devices; two computers can share USB devices to improve office efficiency. Easy to use. Plugandplay style operation with no extra power requirements or complex setup. Use scenarios Small office with two PCs that need to print to a single printer throughout the day, avoiding constant cable switching. Home office setup where two computers share a printer and USB peripherals to streamline workflows. Meeting room or shared workspace where two laptops alternate printing tasks and access shared USB devices.