No speed loss recognized.

Had years ago another USB tested 3.0 extension cable, which has significantly reduced the speed of connected devices ... this cable but here is super: my USB stick (Lexar Triton JumpDrive) runs to this cable as soon as right on the PC (in my case with full 165MB / s read and 150MB / s write rate).

In short, an absolutely recommendable cable provided 1m enough (and to lay on the table is enough USB 3.0 the most).