Get Upto $75 Discount On SanDisk Memory Card At Bestbuy.com. Easily store and access your media with this 64 GB SanDisk Ultra micro SDXC Class 10 memory card that includes a SD/SDHC adapter to provide expanded compatibility options. It is compatible with most devices with a micro SDXC card slot. The 64 GB storage capacity offers plenty of space for important photos, videos, documents and more. It has up to 30 MB/sec. read speed enables fast data transfer.