Have the cable bought yesterday and today has been delivered. Equal times tested on my new MacBook Pro with the Aja Software File size 1,0GB. Tested with my brand new 2.5 "external HDD Touro USB 3.0. Original USB 3.0 from Touro Write 131,6mb / sec and read 131,8mb / sec Delock USB 3.0 1m long, write 126,7mb / sec and read 129,4mb / sec So perfectly fine. Hard disk was immediately recognized without problems.