BASEQI Aluminum microSD Adapter for MacBook Air 13" and MacBook Pro 13"/15" (Non-Retina) Simple & Easy to adding storage space, Add up to 512GB of extra space Completely hidden and fits snugly into your MacBook Air 13" and MacBook Pro 13"/15" (Non-Retina models) SD card slot Use aluminum material and each one is CNC precision machining Support Macbook's Time Machine Toolless : When you remove without any tools