On the manufacturer's website: Read 32MB/s, write 18MB/s (16~32GB). Actual speed characteristics tested by HD Tune immediately after purchase on FAT32: Mb/sec read speed: - max 24.7 - Min 20.6 - average 23.9 write speed - 15.6 Mb/sec access time - 1.4 ms It can be seen that the manufacturer lied the read speed by 33%, the write speed by 15%! According to Total Commander, average write speeds are no more than 9 Mb/sec, reading 18 Mb/sec. So this is half of the declared characteristics! I tested on avi file larger than 4GB. But I bought it anyway, because. price, price and more price!
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