I was looking on Newegg for some SO-DIMM DDR3 ram for my laptop and noticed Kingston has a large variety of very similar laptop ram chips with different model numbers, marketed as "System Specific" ram with a listing of "compatible" devices. (Curiously Newegg has a couple of Lenovo specific ones, but none match my laptop's model specifically.)
I'm used to buying desktop RAM for custom builds where "system specific" wouldn't even make sense but I'm a bit more hesitant to buy laptop ram. Is "system specific" something I should be worried about? Or if the RAM meets the specs my laptop's manual lists (SO-DIMM DDR3 PC3-8500) is that enough to be reasonably sure the chip will work with my laptop?