In 2014 I bought 2 units of the 128GB version. You were excellent! Extremely fast! In February 2016 I bought a new 128 GB. This block doesn't work like the old ones. This one isn't as fast as the old ones, nor does it write all the time like the old ones. Hangs up regularly. Look at the examples in the pictures. I wrote a 2.5GB file. The older one continued to write at a speed of 75 Mbit/s; the newer one was writing intermittently and had an average speed of 30 Mbps. PNY support contacted me and offered a replacement. But first I had to send the defective device back to them myself. I upgraded a star for sending a replacement, but I haven't tested the device yet. but the speed is very low. I downloaded 2 files of 3.0GB and the write speed was only 30Mbps. I also tested with Crystal Clear Mark (see image). I will not buy this model again and do not recommend buying it. I reduced it to one. Star. Try a newer model; maybe PNY fixed the problem.
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