I think that is just a caddy. I can get one for my laptop which slots in to the dvd drive if i remove the dvd drive.
But i dont need an ssd. I have a quad core laptop i bought from my job in a computer shop and it boots in 10 seconds.
Granted there is nothing stored on it but default programs and most space is free, but it is only a hdd and it is super fast.
I was going to upgrade the ram to 8 it is 4 now but i dont see the point. its not going to get any faster.
plus the thing about ssd drives is that the data corrodes the drive with regular use. an ssd needs free space to prolong the life of the drive. eventually if it is full of data the data will be corrupted. that does not happen to a hdd where the data is physical and not electronically stored.