FeaturesBrand new and high quality.Turns Micro SD card to SD cardConveniently expand the hard disk for MacBook Air or MacBook ProSupports an Micro SD / SDHC / SDXC cardCan also be used as a dustproof plugCompact size for ease of useDesigned for MacBook Pro/ MacBook AirSpecificationsMaterial PCWeight 1gColor WhiteDimensions (0.91 x 0.91 x 0.04)" / (2.3 x 2.3 x 0.1)cm (L x W x H)Compatible with SD CardPackage Includes1 x SD Card Adapter for MacBook