Features: -USB 2.0 high-speed interface, supports data rates of 1.5/12/480 Mbps -Backwards compatible with USB 1.1 -Automatic connection and speed detection -Plug-and-Play; hot-plugging; driver free -Over-current detection and protection -Max output is 2.5W(5V/500MA) across all 4 ports -Check your device loading current when used for charging (e.g. iPads/Tablets) or for high-power devices (e.g. hard drive); insufficient current may lead to slow charging or other failure. -High speed 7 ports USB 2.0 HUB with ON/OFF switch, easy to control. -Meet your USB connection and USB power needs. -Maximum data transfer rate is 480 Mbps. -Fully compliant with USB specification version 2.0, backward compatible with USB 1.1. -Plug and play. -Portable, compact and lightweight. -Friendly and ergonomic design. Compatible with iPhone Samsung LG iPadWindows 98/SE/2000/ME/XP/Vista/7, Linux, Mac OS etc. Size: 16.5x3.5x2.2cm Color: White,Black. Package Included: 1 x 4 Ports/7 Ports USB HUB With ON/OFF Switch