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 15W power supply. This hub is for connecting and powering standard USB 2.0 devices only - it is not a standalone charger and does not support Apple charging extensions. The hub controller has multiple transaction translators (MTT) to maximize throughput, low power consumption (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.Hub Controller The Terminus Technology FE2.1 hub controller chipset in the Plugable USB2-HUB-AG7 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.