Arkview 7 Port High Speed USB 2.0 Hub with Power Adapter USB-PWHB
The Arkview USB-PWHB is a  premium 7 Port High Speed USB 2.0 Hub that is designed to maximize  compatibility with USB 2.0 devices, including power-hungry USB-powered  hard drives, scanners, etc, with its provided 2.5A power supply.  Supplies up to (but not more than) the 500mA per port/device specified  by USB 2.0.Hub ControllerTerminus Technology chipset  supports efficient data transfers for maximum performance across all  devices with minimal power draw. Supports Multiple Transaction  Translators for optimum performance when a combination of USB 2.0 and  1.1 devices are attached. Low power consumption is achived with 0.18um  technology and declocking/depowering of unused ports and parts of chip  not currently in use (155mA with 7 devices connected, 66mA with one),  and fully supports USB 2.0 High-Speed (480Mbs), USB 1.1 Full-speed (12  Mbps), and Low-Speed (1.5Mbps) devices.USB ChargingThis  is a standard USB 2.0 hub, requiring a host computer to be attached and  on to charge devices at the USB 2.0 standard 500mA rate. Some devices  (e.g. the Apple iPad) require more than 500mA to charge when in use. A  standard USB 2.0 hub is not recommended for charging these devices.Included in the package7  port hub with advanced Terminus Technology FE2.1 hub controller, 2.5A  AC power adapter with three-foot cable, and three-foot mini-B to A USB  2.0 cable for connecting the hub to your computer. USB hubs require no  special drivers. Compatible with all USB hosts, including Windows, Mac,  Linux, Wii, PS3, XBOX, Tivo, etc.