The first 64GB flash drive died in a month, presumably from static electricity or something, but I will say this, in all my practice of working with flash drives, not a single flash drive has died! And I have more than 40 of them now, and I threw out another 20 pieces simply because they are outdated in terms of speed and volume. And this Fedya flash drive is ultra-protected type and from water, etc., but alas, it died. When contacting the Samsung company, I went nuts, they refused warranty repairs, they say you bought a flash drive not in the official Samsung store, I would not have expected this even from a no-name manufacturer, but even more so from Samsung! but thank God I managed to return it to the store itself, where I bought it . Now I bought a second flash drive for 128 GB, and so the rest of their minuses are similar to 64 GB. The write speed is very low, no more than 30-45mb/s, and at 64 gigabytes all indicators are lower than those of 128. All other speeds - writing small files, reading small files are also terrible, 10-15mb/s, samsung, are you serious?! ! Another very big minus of this flash drive is its price, if it were not for the bonuses for which I buy them, I would not buy this flash drive, no matter how beautiful it is, the main thing for me is functionality, but this is not about Samsung flash drives. It also heats up quite strongly, but the main thing is that it would not burn out from overheating - then time will tell .