USB 3.1 Type C To 4 Port USB 3.0 HUB External Adapter With Switch For 12Inch Macbook Retina Features:Supports USB 3.1 input and 4 ports USB 3.0，with independent switchSupport USB 3.0 super speed (5Gbps) transmission， downward compatible USB2.0.Driver free，hot swap， easy to use and carrySupport windows XP， windows 7， 8 and Mac OS，Linux.4 Port USB 3.0 Hub ，can connect to hard disk \/ phone \/ U disk etc. Compatible with:Nokia N1 TabletChromebook Pixel 2015MSI Gaming Notebooks12"Macbook RetinaOther Type-C Supported DevicesSize:7*4*1cm\/2.8"*1.6"*0.4"Cable length:15.7cm\/6.2" Package included:1x HUB Adapter More detail: