Joblot of 3 Dell laptops, Inspiron N5050 and 3520, please read description
The first Dell is an N5050, it has 2GB of RAM. The second Dell is the 3520 and has 4GB of ram. There is also only 1 set of screws to share between the Dell 2 and the Dell 3. Lastly, Dell 3 is the N5050 as well (no ram).