Plexus 4 Port High-Speed USB2.0 Hub (Silver) The Plexus 4 Port High Speed USB (Universal Serial Bus) Hub is the perfect companion for your Notebook or laptop as it boasts a stylish compact design which can easily be stored away when not in use. USB2.0 means this little beauty is capable of transfer speeds upto 480 Mbps & is also backward compatible with USB1.1 devices. There is no need for an external power supply as the Plexus Hub is Bus-Powered from your Computer. Adds four USB (Universal Serial Bus) 2.0 hi-speed ports Fully compliant with USB (Universal Serial Bus) 2.0 specifications Support high-speed 480 Mbps, full-speed 12 Mbps, low speed 1.5 Mbps Fully compatible with all USB (Universal Serial Bus) devices Aluminum magnesium alloy material Bus-powered