This 4-Port USB Hub Driver 3.0 with Cable has four (4) USB type A ports that can each be accessed simultaneously. The unit is USB 3.0 compliant, with data transfer rates up to 5 Gbps, and still maintains full backwards compatibility with USB 2.0 and USB 1.1/1.0 devices. The unit can even support all USB 3.0/2.0/1.x inputs simultaneously. The charger is plug-and-play and hot-swap compatible, and can charge under sleep mode. Supporting OS: Windows 8, 7, Vista, XP, 2003/2000/ME, Mac OS X.