My only issue with doing it this way is that the hard drive gets hot and will reduce the life of the SSD. I'm cloning an HDD to an SSD for a neighbor. I disassembled an old 1.6 GB HDD, and I used the aluminum 3.5" housing to mount the drive. If you don't have a drill and a grinder, this will be difficult, but you can purchase a 2.5" to 3.5" drive bracket to mount it in the drive tray. If you wish to keep both, like in your video, then I would find a spot where air can flow completely around the SSD to keep it cool Just my 2 cents, YMMV.

Can someone tell me exactly the model of this cable? I have HDd and want to add AND Ssd

I love those videos, are very useful