This USB 2.0 hub adds practical and reliable desktop connectivity with backward compatibility for USB 1.0 and 1.1 devices. It provides four external USB 2.0 ports plus one shared internal port, enabling multiple devices to be connected at the same time. With data transfer speeds up to 480 Mbps, it supports fast synchronization and data transfer. It is compatible with older Windows systems including 98, ME, 2000, 2003, Vista, and MAS. Key benefits Wide compatibility: backward compatible with USB 1.0, 1.1 and 2.0 devices to connect to your desktop without replacing existing peripherals. speed transfer: supports transfer speeds up to 480 Mbps for efficient data synchronization. Multiple ports: four external USB 2.0 ports plus one shared internal port allow simultaneous device connections. System compatibility: supports 98, ME, 2000, 2003, Vista and MAS systems for flexible use with legacy and newer setups. Use scenarios Home or office desktop expansion: connect a printer, external hard drive, keyboard, and mouse at the same time to streamline workflow without swapping cables. Bridging legacy devices to a modern PC: attach USB 1.0/1.1 peripherals to a computer that primarily uses USB 2.0 for convenient file access and device support. Shared peripheral access in small environments: run multiple devices through a single desktop system for convenient access to USB drives and input devices.