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Kingmax ED-01

  • Storage capacity: 64 GB
  • Interface: USB 3.0
  • Specified sequential read speed: 66 MB/s
  • Specified sequential write speed: 41 MB/s
  • Dimensions: 20 x 9 x 74.5 millimeters
  • Weight: 10.5 grams

As opposed to many other USB 3.0 flash drives, this one is quite pocket-size. It has an ordinary square case made from black plastic. The silvery details are also plastic but with a metallized coating. The drive doesn’t get very hot at work, so you shouldn’t worry about overheat. The protective cap can be put on the drive’s back end by simply turning around by 180 degrees.

Kingston DataTraveler Ultimate 3.0

  • Storage capacity: 32 GB
  • Interface: USB 3.0
  • Specified sequential read speed: 80/30 MB/s (USB 3.0/2.0)
  • Specified sequential write speed: 60/30 MB/s (USB 3.0/2.0)
  • Dimensions: 22.2 x 16.1 x 73.7 millimeters
  • Weight: 25 grams

This is a heavy drive in a plump case with aluminum inserts and a blue activity indicator. It is comparable to the Corsair Survivor GTR in dimensions but, unlike the latter, does not feature any special protection.

The DataTraveler Ultimate 3.0 would get very hot during our tests. Its temperature was as high as 50°C, making it uncomfortable to touch the drive with your fingers. This may also have a negative effect on its service life.

This drive comes with a power cable that can help power it up when connected to USB 2.0 ports which provide a lower current (500 mA) compared to USB 3.0 (900 mA). So, you connect one end of the cable to the flash drive and the other two, to the computer’s USB 2.0 ports. We must confess we didn’t find this cable to be necessary. The drive was powered normally by any single USB 2.0 port of our testbed. There was no difference in terms of performance or temperature, either.

 
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