Out from the box did two separate speed tests for my brand new WD Elements External USB Hard Disk and it is ridiculously slow: Write speeds at 10 mb/sec and read speeds below 20 mb/sec put it back in the box, ready to return it and never bought this brand again.
Tried with a different USB cable from one of my other USB 3.0 Lacie External Hard Drives to check if it was the cable and again the same ridiculously slow speeds.