No performance problem. Like others, this SSD is fast and reliable, for the PNY brand, but not the most "upscale" is, I think, an excellent value. Once said all that, I still a bit on the reservation. Not because of the memory block, but rather for "environment": No support for portable metal that requires to accommodate this new, no small screws for rack cradles desktop PC and then for the cloning software, then it's the desert, or more precisely "that seeks located ". I find that there is a fair bit especially if you are not computer expert yourself because the delicate point of these changes, it is that of cloning. On this point, the only intuitive, efficient and free (there is a paid version if you want to go further) I tried successfully EASEUS Todo Backup is Free. Full On, if you want to manage dynamic disks, for example, or with the paid version, or with windows 7 or more. No 5 star, 3 suffice because I really found inadequate to let the handyman address these challenges. For an entirely planted with a difficulty of this kind, I find unfortunate that the manufacturer does not emit any reservations or advice on setting such equipment service.