Kensington UH4000 4 Port USB Hub 3.0 (K33978WW) Add 4 USB ports for simple device expansion USB 3.0 technology for transfer speeds up to 5 Gbps, which is 10x faster than USB 2.0 Plug & Play installation with no drivers Compatible with systems running Windows 8.1/8/7/Vista/XP; Mac OS X 10.6 or later