T7Hub is typically used when the built-in USB ports are hopelessly outnumbered by the many USB peripherals you own. If you routinely use 4 or more USB devices T7Hub will undoubtedly be at the epicenter of your USB activities.T7Hub extends a native USB port to amodate up to 7 USB devices or further USB hubs. The necessary USB A-B cable for creating the uplink is included in the package.Anybody with a number of power-hungry USB devices will appreciate the T7Hub's ability to drive 7 such devices (with 0.5 A each the maximum current permitted for an individual USB device). This is because T7Hub unlike other products on the marketes with a 3.5 A power supply. Aside offering enough power for the most demanding applications it is also one of the smallest power supplies in its category so it will not burden you at all!Power users will also appreciate the reliability T7Hub offers. T7Hub transforms fickle performance from a bus-powered port on a keyboard into reliable duty cycles that last as long as your work requires.Benefits:T7Hub can be installed without turning yourputer off.T7Hub ispatible with all USB devices.T7Hub is platform-independent Mac OS (both 9 and X flavors) Win98/ME Win2k/XP and Linux are all supported.T7Hub's built-in over-current protection will power down individual ports with defective devices drawing too much current leaving other ports fully operational.T7Hub is a piece of art: a perfect match for any iMac PPC iMac Intel or iBook; in fact any other stylishputer out there!Technical Features:Compatible with USB 2.0 and USB 1.1 specs.Plug-and-Playpatible.Bus error recognition and correction.480 12 and 1.5 Mbps transfer rate available on all 7 connectors.Operation is possible with and without power supply. LEDs signal bus-powered or self-powered modes.Deactivation of individual ports.1. Overcurrent protection with limits between 500 mA (min.) / 750 mA (typ.) / 1250 mA (max.) overcurrent shutdown is indicated by LEDs2. Automatic shutdown in case of ove