TRIPP LITE 7-Port USB 2.0 Mobile Hi-Speed Hub Notebook Laptop (U223-007) Connect up to 7 USB 2.0 devices to a single USB port on your computer Supports data transfer rates up to 480Mbps Compact design is ideal for use with a laptop/notebook computer Does not require external power, software, or complicated set-up procedures Plug-and-play/hot-swappable allows you to add or remove a device at any time 3-year limited warranty Bus-powered or self-powered