After I was looking for multiple solutions, to copy the contents of a nearly full 2 GB USB 2.0 hard drive to a 3 GB USB 2.0 hard drive, and the data transmission of> 10 MB / s in the first few seconds each time has fallen to well below 1 MB / s, which would extend the total duration of the copy operation for several weeks, I have this cable worried. Lo and behold, lasting 10 to 11 MB / s. Meanwhile, the data is copied. Predicate: Highly recommended!