MBEAT BULK BUY 2016 - Ultra dual USB 3.0 reader for PCs, Smartphones & Tablets - 2-in-1 USB 3.0 and Micro USB 2.0 OTG function - USB 3.0 SD/MicroSD card reader for PC/MAC - Micro USB OTG reader for Android smartphone and tablet - Make data transfer between PC and smartphone or tablet