The Plugable USB2-HUB-AG7 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 3A power supply for UK mains. Supplies up to (but not more than) the 500mA per port/device specified by USB 2.0. CompatibilityCompatible with all USB hosts, including Windows, Mac, Linux, Wii, PS3, XBOX, Tivo, Android systems with USB, etc. No driver install required - uses standard USB support already built in. When using included AC adapter, does not draw power from host's USB port -- Can power the Raspberry Pi and its attached USB devices.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 achieved 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). 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, 3A AC power adapter with 1.5 meter cable and plug for connecting to UK mains, and 1.5 meter mini-B to A USB 2.0 cable for connecting the hub to your computer.