Great card. 2 years and 3 phones later and its still ticking. Excellent read/write speeds. Does very well in my Note 2 and Note 3. I did a directory swap on my note 2 so that I could use this 64gb as the &#34;phones memory&#34; while the 16gb in the phone was the &#34;external SD&#34;. Honestly, it was stupid the stopped letting apps be put on the sdcard (which they brought back in android 4.3) and I was always short on space due to the massive size of games these days. The card responded just like the phones built in memory as far as speed goes. Never saw a performance drop of any kind. Was able to play demanding games like NOVA3 or GTA3 without lag or any skipping. And the card survived 3 phones. First note 2 took a nasty plunge that totaled the phone. Card was perfectly fine.