Review on JSAUX USB 3.0 Extension Cable - 2 Pack 6.6ft USB A Male to Female Cord for High Data Transfer - Compatible with USB Flash Drive, Keyboard, Mouse, Xbox, Hard Drive, and More-Black by Brad Ward

They feel comfortable, durable, braided lines are great. However, the connector did not provide a reliable connection to my PC from the start. I used it to download 60GB HD music to PC. except that it lost connection every 5 seconds. Tried another cable, same problem. I tried other cables I already had and had no problems. The transmission speed for a few seconds when it actually worked was fast. I wanted them to be long so I wouldn't have to move my system to access the USB ports for my portable CD player and portable HD, which come with very short cables.