The connections go well, use 2 Toshiba 2.5 inch 512 Mb USB3 external hard drives that funzen fine with the extension. I can not when copying mkv with up to 6 Gb under extreme Copy, even when streaming detect a deterioration. The material looks good, maybe a little too tight, you can put only large loops, but no small arch. Even my Intenso USB3 stick is recognized immediately. So I can recommend the extension.
