12-Port USB 2.0 HUB w/ AC Adapter

This high qualityUSB hub is perfect for users who have a large amount of USB devices to connect and require the expandability of 12 additional USB ports. Features: - 1 upstream to 12 downstream USB ports. - DC jack for connecting an external ACpower supply (included). - Supports USB switching methods. - Asynchronous notification to eliminate the need for host polling to determine if a device has been added, removed, and hot-plugged. - Supports up to USB 2.0 480Mb/sec transfer rates. - Power adapter maximum current: 3.5a - Maximum current output to ports: 500mA per port. * This is a self-poweredhub withexternal power adapterincluded.