64gb sandisk memory card original sandisk ultra high-speed mobile 64gb microsdxc memory card. the sandisk 64gb offers the highest full hd video recording performance available with class 10 rating. ideal for tablet pc, mp3, phone, camera, gps, dvr, tablet android, other smart devices, and car dash cam. uhs-1 enabled, faster app performance with transfer read speed 100mb/s. double the speed of typical microsd cards for advanced photo capture. water-proof, temperature proof, x-ray proof. essential details name: sandisk ultra a1 micro tf sd tf memory card 64gb capacity: 64gb size: 15mm(l) * 11mm(w) * 1mm(h) data retention: 10 years minimum