Professional Ultra SanDisk 64GB MicroSDXC Microsoft Lumia 640 card is custom formatted for high speed, lossless recording! Includes Standard SD Adapter. (UHS-1 Class 10 Certified 48MB/sec) This SanDisk MicroSDXC card's specifically designed for your Microsoft Lumia 640 ! Share your content collections with friends, family and colleagues easily. SanDisks removable storage solution specifically designed for mobile phones with expansion slots. Its ultra-small size consumes very little power from your handset, to give you longer battery life on your phone. Now you can instantly move pictures between multiple devices for sharing and printing using this card as well.