This CP Technologies USB 2.0 Hi-Speed Hub lets you add more USB 2.0 peripherals to your desktop computer; the hub has 4 downstream ports, which will connect either the new USB 2.0 high performance peripherals or the legacy USB 1.1 devices. This means it is fully "backwards compatible" with all your existing USB products. The hub is 100% compliant with the USB 2.0 specifications. The USB 2.0 Hi-Speed Hub will allow users to add multiple higher performance peripherals such as high-resolution video conferencing cameras, and next generation of USB 2.0 scanners, printers, and fast storage devices. The hub will allow you to connect up to 127 USB devices to your computer and comes with a USB 2.0 cable.