Y0GI :
I believe that Samsung offers a "Laptop Kit" that comes with a SATA to USB cable for cloning a laptop drive to the new SSD. There may be some other extras also. The SSD in the kit is the same 840 Evo 2.5" drive.
Yogi
Some "for Laptops" models specify they come with the migration kit. On the Best Buy web site, each that I saw was very overpriced compared to those that did not specify the inclusion of a migration kit.
Concerning those that come with the kit, I've used the same kit in the past to clone desktop drives. It will work for either desktop or laptop.
Whether the migration kit is included or not, the drive will work on a desktop PC as well as a laptop PC.