I buy these wires to save my USB ports on my computer from ware and tare from constantly changing hard disks for backup and older chinese products normally fail on my in 2 - 3 months or so. This cable looked much better right out of the box. I get USB 3 speeds on the hard disks which I was not getting on other cables. Looks like a much better quality product compared to some other USB extenders available on Amazon. BUY THIS ONE.