SSK USB HUB Super Speed HUB USB 3.0 4 Port USB Splitter Data HUB Blue for Mac, Windows, Linux Expand your PC or Loptop connectivity with this SSK USB hub, which interfaces with a single USB 3.0 port to enable connection of up to 4 USB devices. Powered by USB cable.Provides steady power or a quick charge to compatible devices. USB3.0 interface.Data transfer speeds up to 5 Gbps.Allow you to quickly upload and download photos, videos, music and other files. Gold connectors ensure efficient signal transfer. Compatible with most operating system,Windows98/ME/2000/XP/Vista/8Mac OS 10.9 or above. High performance chipest,ensure transfer stablely.