There are 2 types of hdd cases for laptops instead of the cd drive in terms of size .. this is the light version.
The installation of the hard drive was done without difficulty and it fit perfectly in the laptop...
The construction seems to be fake as the material is not of high quality, but you don't need anything more or less than what it gives you...
It is the 2nd one I bought (for upgrading 2 computers) and if it fit another one, I would buy it again.

It was very convenient for me not to constantly carry an external hard drive.
Very easy installation, but you need to remove the bracket that holds it in place from the DVD player. If the laptop came without a DVD player, then you won't be able to secure it. I left it like that, without screwing it in, if you don't pull it, it won't come out.
After it is installed, it doesn't read it immediately, but you have to restart.
It reads/writes quickly, you can't tell the difference from the primary hard drive