About this item This fits your . Make sure this fits by entering your model number. Different from traditional linear structure, compact and sleek RH4CS adopts unique Mac Pro style, which is made of high strength material and processed by high gloss lacquer finish, perfectly matching your desktops and laptops. A hub, also a charger,Two-in-one expansion，Provide 1.0 - 2.4A current to charge cellphones, tablets or other devices at full speed while expanding USB3.0 port. Fast transmission, no more wait，RH4CS, whose transfer rate of Super Speed USB3.0 is up to 5 Gbps, easily syncs mass data, setting aside more time for work. Easy to charge,No need charging adapter，RH4CS is equipped with 2 charging port which provide 1.0 - 2.4A current, so that you needn't stop your work or movie to find adapter while cellphone or tablet is out of juice, just plugging the cable then charge is done. Multiple systems supported，RH4CS can work with Windows XP / 7 / 8 / Vista, Linux, Mac OS and other major systems on the market, reliable and backwards compatible.