It heats up, but not nearly as much as some other flash drives. The test screen capture is included. Copying a 32.7 GB movie from an SSD to a USB flash drive took 23 minutes and 42 seconds and returned in 2 minutes and 46 seconds, while copying a folder containing 3.67 GB of mp3 music took 2 minutes and 45 seconds and returned in 20 seconds.
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