USB 3.1 Type C USB-C to Micro SD SDXC TF Card Reader Adapter for Macbook !#!amp!*! Cell Phone Card Compatibility: MICRO SD/SDXC/TF card Support USB 3.1 Type-C port Compatible with USB 3.1 port Macbook and Cell phone / Tablet. No need driver The LED indicator light will be blue when it works. Dimensions: 0.79 in x 0.79 in x 0.39 in (2.0 cm x 2.0 cm x 1.0 cm) Weight: 0.18 oz (5 g)