Add 7 USB ports for simple device expansion USB 3.0 for data speeds up to 5 Gbps, which is 10x faster than USB 2.0 4 AMPs are available to fast charge smartphones and/or tablets when hub is plugged into a wall outlet for external power Plug & Play installation with no driver downloads necessary Compatible with systems running Windows 10/8.1/8/7/Vista/XP; Mac OS X 10.6 or later