2 adapters ordered for my internal hard drive and my lecteur.Une time in the bios of my motherboard to select the boot device, the CD player and my hard drive are not represented in the bios, only my SSD is seen by my motherboard, coincidentally the only component of 3 who do not need an adapter. So I check my connections once, twice, three fois..à the fifth no perceivable change. In short I would advise all product GO AWAY!